For other uses, see Birth control (disambiguation).
Birth control |
Intervention |
A package of birth control pills
|
MeSH |
D003267 |
Birth control, also known as contraception and fertility control, are methods or devices used to prevent pregnancy.[1] Planning, provision and use of birth control is called family planning.[2][3] Birth control methods have been used since ancient times, but effective and safe methods only became available in the 20th century.[4] Some cultures limit or discourage access to birth control because they consider it to be morally, religiously, or politically undesirable.[4]
The most effective methods of birth control are sterilization by means of vasectomy in males and tubal ligation in females, intrauterine devices (IUDs) and implantable contraceptives. This is followed by a number of hormonal contraceptives including oral pills, patches, vaginal rings, and injections. Less effective methods include barriers such as condoms, diaphragms and contraceptive sponge and fertility awareness methods. The least effective methods are spermicides and withdrawal by the male before ejaculation. Sterilization, while highly effective, is not usually reversible; all other methods are reversible, most immediately upon stopping them.[5] Safe sex, such as the use of male or female condoms, can also help prevent sexually transmitted infections.[6][7] Emergency contraceptives can prevent pregnancy in the few days after unprotected sex. Some regard sexual abstinence as birth control, but abstinence-only sex education may increase teen pregnancies when offered without contraceptive education, due to non-compliance.[8][9]
In teenagers, pregnancies are at greater risk of poor outcomes. Comprehensive sex education and access to birth control decreases the rate of unwanted pregnancies in this age group.[10][11] While all forms of birth control may be used by young people,[12] long-acting reversible birth control such as implants, IUDs, or vaginal rings are of particular benefit in reducing rates of teenage pregnancy.[11] After the delivery of a child, a woman who is not exclusively breastfeeding may become pregnant again after as few as four to six weeks. Some methods of birth control can be started immediately following the birth, while others require a delay of up to six months. In women who are breastfeeding, progestin-only methods are preferred over combined oral contraceptives. In women who have reached menopause, it is recommended that birth control be continued for one year after the last period.[12]
About 222 million women who want to avoid pregnancy in developing countries are not using a modern birth control method.[13][14] Birth control use in developing countries has decreased the number of maternal deaths by 40% (about 270,000 deaths prevented in 2008) and could prevent 70% if the full demand for birth control were met.[15][16] By lengthening the time between pregnancies, birth control can improve adult women's delivery outcomes and the survival of their children.[15] In the developing world women's earnings, assets, weight, and their children's schooling and health all improve with greater access to birth control.[17] Birth control increases economic growth because of fewer dependent children, more women participating in the workforce, and less consumption of scarce resources.[17][18]
Contents
- 1 Methods
- 1.1 Hormonal
- 1.2 Barrier
- 1.3 Intrauterine devices
- 1.4 Sterilization
- 1.5 Behavioral
- 1.5.1 Fertility awareness
- 1.5.2 Withdrawal
- 1.5.3 Abstinence
- 1.5.4 Lactation
- 1.6 Emergency
- 1.7 Dual protection
- 2 Effects
- 3 Prevalence
- 4 History
- 4.1 Early history
- 4.2 Birth control movement
- 4.3 Modern methods
- 5 Society and culture
- 5.1 Legal positions
- 5.2 Religious views
- 5.3 World Contraception Day
- 5.4 Misconceptions
- 6 Research directions
- 7 Other animals
- 8 References
- 9 Further reading
- 10 External links
Methods
See also: Comparison of birth control methods
Chance of pregnancy during first year of use[19][20]
Method |
Typical use |
Perfect use |
No birth control |
85% |
85% |
Combination pill |
9% |
0.3% |
Progestin-only pill |
13% |
1.1% |
Sterilization (female) |
0.5% |
0.5% |
Sterilization (male) |
0.15% |
0.1% |
Condom (female) |
21% |
5% |
Condom (male) |
18% |
2% |
Copper IUD |
0.8% |
0.6% |
Hormonal IUD |
0.2% |
0.2% |
Patch |
9% |
0.3% |
Vaginal ring |
9% |
0.3% |
Depo-Provera |
6% |
0.2% |
Implant |
0.05% |
0.05% |
Diaphragm and spermicide |
12% |
6% |
Fertility awareness |
24% |
0.4–5% |
Withdrawal |
22% |
4% |
Lactational amenorrhea method
(6 months failure rate) |
0-7.5%[21] |
<2%[22] |
Contraception – How to prevent unwanted pregnancy
Birth control methods include barrier methods, hormonal birth control, intrauterine devices (IUDs), sterilization, and behavioral methods. They are used before or during sex while emergency contraceptives are effective for up to a few days after sex. Effectiveness is generally expressed as the percentage of women who become pregnant using a given method during the first year,[23] and sometimes as a lifetime failure rate among methods with high effectiveness, such as tubal ligation.[24]
The most effective methods are those that are long acting and do not require ongoing health care visits.[25] Surgical sterilization, implantable hormones, and intrauterine devices all have first-year failure rates of less than 1%.[19] Hormonal contraceptive pills, patches or vaginal rings, and the lactational amenorrhea method (LAM), if used strictly, can also have first-year (or for LAM, first-6-month) failure rates of less than 1%.[25] With typical use first-year failure rates are considerably high, at 9%, due to incorrect usage.[19] Other methods such as condoms, diaphragms, and spermicides have higher first-year failure rates even with perfect usage.[25] The American Academy of Pediatrics recommends long acting reversible birth control as first line for young people.[26]
While all methods of birth control have some potential adverse effects, the risk is less than that of pregnancy.[25] After stopping or removing many methods of birth control, including oral contraceptives, IUDs, implants and injections, the rate of pregnancy during the subsequent year is the same as for those who used no birth control.[27]
In those with specific health problems, certain forms of birth control may require further investigations.[28] For women who are otherwise healthy, many methods of birth control should not require a medical exam—including birth control pills, injectable or implantable birth control, and condoms.[29] Specifically, a pelvic exam, breast exam, or blood test before starting birth control pills do not appear to affect outcomes and, therefore, are not required.[30][31] In 2009, the World Health Organization (WHO) published a detailed list of medical eligibility criteria for each type of birth control.[28]
Hormonal
Hormonal contraception is available in a number of different forms, including oral pills, implants under the skin, injections, patches, IUDs and a vaginal ring. They are currently available only for women, although hormonal contraceptives for men have and are being clinically tested.[32] There are two types of oral birth control pills, the combined oral contraceptive pills (which contain both estrogen and progesterone) and the progestogen-only pills (sometimes called minipills).[33] If either is taken during pregnancy, they do not increase the risk of miscarriage nor cause birth defects.[31] Both types of birth control pills prevent fertilization mainly by inhibiting ovulation and thickening cervical mucous.[34][35] Their effectiveness depends on the user remembering to take the pills.[31] They may also change the lining of the uterus and thus decrease implantation.[35]
Combined hormonal contraceptives are associated with a slightly increased risk of venous and arterial blood clots.[36] Venous clots, on average, increase from 2.8 to 9.8 per 10,000 women years[37] which is still less than that associated with pregnancy.[36] Due to this risk, they are not recommended in women over 35 years of age who continue to smoke.[38] The effect on sexual desire is varied, with increase or decrease in some but with no effect in most.[39] Combined oral contraceptives reduce the risk of ovarian cancer and endometrial cancer and do not change the risk of breast cancer.[40][41] They often reduce menstrual bleeding and painful menstruation cramps.[31] The lower doses of estrogen released from the vaginal ring may reduce the risk of breast tenderness, nausea, and headache associated with higher dose estrogen products.[40]
Progestin-only pills, injections and intrauterine devices are not associated with an increased risk of blood clots and may be used by women with previous blood clots in their veins.[36][42] In those with a history of arterial blood clots, non-hormonal birth control or a progestin-only method other than the injectable version should be used.[36] Progestin-only pills may improve menstrual symptoms and can be used by breastfeeding women as they do not affect milk production. Irregular bleeding may occur with progestin-only methods, with some users reporting no periods.[43] The progestins drospirenone and desogestrel minimize the androgenic side effects but increase the risks of blood clots and are thus not first line.[44] The perfect use first-year failure rate of the injectable progestin, Depo-Provera, is 0.2%; the typical use first failure rate is 6%.[19]
-
Three varieties of birth control pills in calendar oriented packaging
-
A transdermal contraceptive patch
-
Barrier
Barrier contraceptives are devices that attempt to prevent pregnancy by physically preventing sperm from entering the uterus.[45] They include male condoms, female condoms, cervical caps, diaphragms, and contraceptive sponges with spermicide.[45]
Globally, condoms are the most common method of birth control.[46] Male condoms are put on a man's erect penis and physically block ejaculated sperm from entering the body of a sexual partner.[47] Modern condoms are most often made from latex, but some are made from other materials such as polyurethane, or lamb's intestine.[47] Female condoms are also available, most often made of nitrile, latex or polyurethane.[48] Male condoms have the advantage of being inexpensive, easy to use, and have few adverse effects.[49] Making condoms available to teenagers does not appear to affect the age of onset of sexual activity or its frequency.[50] In Japan about 80% of couples who are using birth control use condoms, while in Germany this number is about 25%,[51] and in the United States it is 18%.[52]
Male condoms and the diaphragm with spermicide have typical use first-year failure rates of 18% and 12%, respectively.[19] With perfect use condoms are more effective with a 2% first-year failure rate versus a 6% first-year rate with the diaphragm.[19] Condoms have the additional benefit of helping to prevent the spread of some sexually transmitted infections such as HIV/AIDS.[5]
Contraceptive sponges combine a barrier with a spermicide.[25] Like diaphragms, they are inserted vaginally before intercourse and must be placed over the cervix to be effective.[25] Typical failure rates during the first year depend on whether or not a woman has previously given birth, being 24% in those who have and 12% in those who have not.[19] The sponge can be inserted up to 24 hours before intercourse and must be left in place for at least six hours afterward.[25] Allergic reactions[53] and more severe adverse effects such as toxic shock syndrome have been reported.[54]
-
-
An unrolled male latex condom
-
A polyurethane female condom
-
A diaphragm vaginal-cervical barrier, in its case with a quarter U.S. coin.
-
A contraceptive sponge set inside its open package.
Intrauterine devices
A copper T shaped IUD with removal strings
The current intrauterine devices (IUD) are small devices, often 'T'-shaped, often containing either copper or levonorgestrel, which are inserted into the uterus. They are one form of long-acting reversible contraception which are the most effective types of reversible birth control.[55] Failure rates with the copper IUD is about 0.8% while the levonorgestrel IUD has a failure rates of 0.2% in the first year of use.[56] Among types of birth control, they along with birth control implants result in the greatest satisfaction among users.[57] As of 2007, IUDs are the most widely used form of reversible contraception, with more than 180 million users worldwide.[58]
Evidence supports effectiveness and safety in adolescents[57] and those who have and have not previously had children.[59] IUDs do not affect breastfeeding and can be inserted immediately after delivery.[60] They may also be used immediately after an abortion.[61] Once removed, even after long term use, fertility returns to normal immediately.[62]
While copper IUDs may increase menstrual bleeding and result in more painful cramps[63] hormonal IUDs may reduce menstrual bleeding or stop menstruation altogether.[60] Cramping can be treated with NSAIDs.[64] Other potential complications include expulsion (2–5%) and rarely perforation of the uterus (less than 0.7%).[60][64] A previous model of the intrauterine device (the Dalkon shield) was associated with an increased risk of pelvic inflammatory disease, however the risk is not affected with current models in those without sexually transmitted infections around the time of insertion.[65]
Sterilization
Surgical sterilization is available in the form of tubal ligation for women and vasectomy for men.[4] There are no significant long-term side effects, and tubal ligation decreases the risk of ovarian cancer.[4] Short term complications are twenty times less likely from a vasectomy than a tubal ligation.[4][66] After a vasectomy, there may be swelling and pain of the scrotum which usually resolves in a week or two.[67] With tubal ligation, complications occur in 1 to 2 percent of procedures with serious complications usually due to the anesthesia.[68] Neither method offers protection from sexually transmitted infections.[4]
This decision may cause regret in some men and women. Of women aged over 30 who have undergone tubal ligation, about 5% regret their decision, as compared with 20% of women aged under 30.[4] By contrast, less than 5% of men are likely to regret sterilization. Men more likely to regret sterilization are younger, have young or no children, or have an unstable marriage.[69] In a survey of biological parents, 9% stated they would not have had children if they were able to do it over again.[70]
Although sterilization is considered a permanent procedure,[71] it is possible to attempt a tubal reversal to reconnect the fallopian tubes or a vasectomy reversal to reconnect the vasa deferentia. In women the desire for a reversal is often associated with a change in spouse.[71] Pregnancy success rates after tubal reversal are between 31 and 88 percent, with complications including an increased risk of ectopic pregnancy.[71] The number of males who request reversal is between 2 and 6 percent.[72] Rates of success in fathering another child after reversal are between 38 and 84 percent; with success being lower the longer the time period between the original procedure and the reversal.[72] Sperm extraction followed by in vitro fertilization may also be an option in men.[73]
Behavioral
Behavioral methods involve regulating the timing or method of intercourse to prevent introduction of sperm into the female reproductive tract, either altogether or when an egg may be present.[74] If used perfectly the first-year failure rate may be around 3.4%, however if used poorly first-year failure rates may approach 85%.[75]
Fertility awareness
A CycleBeads, used for estimating fertility based on days since last menstruation
Fertility awareness methods involve determining the most fertile days of the menstrual cycle and avoiding unprotected intercourse.[74] Techniques for determining fertility include monitoring basal body temperature, cervical secretions, or the day of the cycle.[74] They have typical first-year failure rates of 24%; perfect use first-year failure rates depend on which method is used and range from 0.4% to 5%.[19] The evidence on which these estimates are based, however, is poor as the majority of people in trials stop their use early.[74] Globally, they are used by about 3.6% of couples.[76] If based on both basal body temperature and another primary sign, the method is referred to as symptothermal. Overall first-year failure rates of <2% to 20% have been reported in clinical studies of the symptothermal method.[77][78]
Withdrawal
The withdrawal method (also known as coitus interruptus) is the practice of ending intercourse ("pulling out") before ejaculation.[79] The main risk of the withdrawal method is that the man may not perform the maneuver correctly or in a timely manner.[79] First-year failure rates vary from 4% with perfect usage to 22% with typical usage.[19] It is not considered birth control by some medical professionals.[25]
There is little evidence regarding the sperm content of pre-ejaculatory fluid.[80] While some tentative research did not find sperm,[80] one trial found sperm present in 10 out of 27 volunteers.[81] The withdrawal method is used as birth control by about 3% of couples.[76]
Abstinence
Though some groups advocate total sexual abstinence, by which they mean the avoidance of all sexual activity, in the context of birth control the term usually means abstinence from vaginal intercourse.[82][83] Abstinence is 100% effective in preventing pregnancy; however, not everyone who intends to be abstinent refrains from all sexual activity, and in many populations there is a significant risk of pregnancy from nonconsensual sex.[84][85]
Abstinence-only sex education does not reduce teenage pregnancy.[7][86] Teen pregnancy rates are higher in students given abstinence-only education, as compared with comprehensive sex education.[86][87] Some authorities recommend that those using abstinence as a primary method have backup method(s) available (such as condoms or emergency contraceptive pills).[88] Deliberate non-penetrative sex without vaginal sex or deliberate oral sex without vaginal sex are also sometimes considered birth control.[89] While this generally avoids pregnancy, pregnancy can still occur with intercrural sex and other forms of penis-near-vagina sex (genital rubbing, and the penis exiting from anal intercourse) where sperm can be deposited near the entrance to the vagina and can travel along the vagina's lubricating fluids.[90][91]
Lactation
The lactational amenorrhea method involves the use of a woman's natural postpartum infertility which occurs after delivery and may be extended by breastfeeding.[92] This usually requires the presence of no periods, exclusively breastfeeding the infant, and a child younger than six months.[22] The World Health Organization states that if breastfeeding is the infant's only source of nutrition, the failure rate is 2% in the six months following delivery.[93] Six uncontrolled studies of lactational amenorrhea method users found failure rates at 6 months postpartum between 0% and 7.5%.[94] Failure rates increase to 4–7% at one year and 13% at two years.[95] Feeding formula, pumping instead of nursing, the use of a pacifier, and feeding solids all increase its failure rate.[96] In those who are exclusively breastfeeding, about 10% begin having periods before three months and 20% before six months.[95] In those who are not breastfeeding, fertility may return four weeks after delivery.[95]
Emergency
A split dose of two emergency contraceptive pills (most are now provided as one single-dose pill)
Emergency contraceptive methods are medications (sometimes misleadingly referred to as "morning-after pills")[97] or devices used after unprotected sexual intercourse with the hope of preventing pregnancy.[98] They work primarily by preventing ovulation or fertilization.[4] A number of options exist, including high dose birth control pills, levonorgestrel, mifepristone, ulipristal and IUDs.[99] Levonorgestrel pills, when used within 3 days, decrease the chance of pregnancy after a single episode of unprotected sex or condom failure by 70% (resulting in a pregnancy rate of 2.2%).[98] Ulipristal, when used within 5 days, decreases the chance of pregnancy by about 85% (pregnancy rate 1.4%) and might be a little more effective than levonorgestrel.[98][99][100] Mifepristone is also more effective than levonorgestrel while copper IUDs are the most effective method.[99] IUDs can be inserted up to five days after intercourse and prevent about 99% of pregnancies after an episode of unprotected sex (pregnancy rate of 0.1 to 0.2%).[4][101] This makes them the most effective form of emergency contraceptive.[102] In those who are overweight or obese levonorgestrel is less effective and an IUD or ulipristal is recommended.[103]
Providing emergency contraceptive pills to women in advance does not affect rates of sexually transmitted infections, condom use, pregnancy rates, or sexual risk-taking behavior.[104][105] All methods have minimal side effects.[99]
Dual protection
Dual protection is the use of methods that prevent both sexually transmitted infections and pregnancy.[106] This can be with condoms either alone or along with another birth control method or by the avoidance of penetrative sex.[107][108] If pregnancy is a high concern using two methods at the same time is reasonable,[107] and two forms of birth control is recommended in those taking the anti-acne drug isotretinoin, due to the high risk of birth defects if taken during pregnancy.[109]
Effects
Health
Maternal mortality rate as of 2010.
[110]
Contraceptive use and total fertility rate by region.
See also: Maternal health
Contraceptive use in developing countries is estimated to have decreased the number of maternal deaths by 40% (about 270,000 deaths prevented in 2008) and could prevent 70% of deaths if the full demand for birth control were met.[15][16] These benefits are achieved by reducing the number of unplanned pregnancies that subsequently result in unsafe abortions and by preventing pregnancies in those at high risk.[15]
Birth control also improves child survival in the developing world by lengthening the time between pregnancies.[15] In this population, outcomes are worse when a mother gets pregnant within eighteen months of a previous delivery.[15][111] Delaying another pregnancy after a miscarriage however does not appear to alter risk and women are advised to attempt pregnancy in this situation whenever they are ready.[111]
Teenage pregnancies, especially among younger teens, are at greater risk of adverse outcomes including early birth, low birth weight, and death of the infant.[10] In the United States 82% of pregnancies in those between 15 and 19 are unplanned.[64] Comprehensive sex education and access to birth control are effective in decreasing pregnancy rates in this age group.[112]
Finances
Countries by fertility rate as of 2015.
7–8 Children
6–7 Children
5–6 Children
4–5 Children
|
3–4 Children
2–3 Children
1–2 Children
0–1 Children
|
See also: Family economics and Cost of raising a child
In the developing world, birth control increases economic growth due to there being fewer dependent children and thus more women participating in the workforce.[17] Women's earnings, assets, body mass index, and their children's schooling and body mass index all improve with greater access to birth control.[17] Family planning via the use of modern birth control is one of the most cost-effective health interventions.[113] For every dollar spent, the United Nations estimates that two to six dollars are saved.[14] These cost savings are related to preventing unplanned pregnancies and decreasing the spread of sexually transmitted illnesses.[113] While all methods are beneficial financially, the use of copper IUDs resulted in the greatest savings.[113]
The total medical cost for a pregnancy, delivery and care of a newborn in the United States is on average $21,000 for a vaginal delivery and $31,000 for a Caesarean section as of 2012.[114] In most other countries the cost is less than half.[114] For a child born in 2011, an average US family will spend $235,000 over 17 years to raise them.[115]
Prevalence
Main article: Prevalence of birth control
Percentage of women using modern birth control as of 2010.
6%
12%
18%
24%
30%
36%
|
42%
48%
54%
60%
66%
72%
|
78%
84%
86%
No data
|
Globally, as of 2009, approximately 60% of those who are married and able to have children use birth control.[116] How frequently different methods are used varies widely between countries.[116] The most common method in the developed world is condoms and oral contraceptives, while in Africa it is oral contraceptives and in Latin America and Asia it is sterilization.[116] In the developing world overall, 35% of birth control is via female sterilization, 30% is via IUDs, 12% is via oral contraceptives, 11% is via condoms, and 4% is via male sterilization.[116]
While less used in the developed countries than the developing world, the number of women using IUDs as of 2007 was more than 180 million.[58] Avoiding sex when fertile is used by about 3.6% of women of childbearing age, with usage as high as 20% in areas of South America.[117] As of 2005, 12% of couples are using a male form of birth control (either condoms or a vasectomy) with higher rates in the developed world.[118] Usage of male forms of birth control has decreased between 1985 and 2009.[116] Contraceptive use among women in Sub-Saharan Africa has risen from about 5% in 1991 to about 30% in 2006.[119]
As of 2012, 57% of women of childbearing age want to avoid pregnancy (867 of 1520 million).[120] About 222 million women however were not able to access birth control, 53 million of whom were in sub-Saharan Africa and 97 million of whom were in Asia.[120] This results in 54 million unplanned pregnancies and nearly 80,000 maternal deaths a year.[116] Part of the reason that many women are without birth control is that many countries limit access due to religious or political reasons,[4] while another contributor is poverty.[121] Due to restrictive abortion laws in Sub-Saharan Africa, many women turn to unlicensed abortion providers for unintended pregnancy, resulting in about 2–4% obtaining unsafe abortions each year.[121]
History
Main article: History of birth control
Early history
Ancient silver coin from Cyrene depicting a stalk of silphium.
The Egyptian Ebers Papyrus from 1550 BCE and the Kahun Papyrus from 1850 BCE have within them some of the earliest documented descriptions of birth control: the use of honey, acacia leaves and lint to be placed in the vagina to block sperm.[122][123] It is believed that in Ancient Greece silphium was used as birth control which, due to its effectiveness and thus desirability, was harvested into extinction.[124]
In medieval Europe, any effort to halt pregnancy was deemed immoral by the Catholic Church,[122] although it is believed that women of the time still used a number of birth control measures, such as coitus interruptus and inserting lily root and rue into the vagina.[125] Casanova, living in 18th century Italy, described the use of a lambskin covering to prevent pregnancy; however, condoms only became widely available in the 20th century.[122]
Birth control movement
"And the villain still pursues her", a satirical Victorian era postcard.
The birth control movement developed during the 19th and early 20th centuries.[126] The Malthusian League, based on the ideas of Thomas Malthus, was established in 1877 in the United Kingdom to educate the public about the importance of family planning and to advocate for getting rid of penalties for promoting birth control.[127] It was founded during the "Knowlton trial" of Annie Besant and Charles Bradlaugh, who were prosecuted for publishing on various methods of birth control.[128]
In the United States, Margaret Sanger and Otto Bobsein popularized the phrase "birth control" in 1914.[129][130] Sanger was mainly active in the United States but had gained an international reputation by the 1930s. At the time, under the Comstock Law, distribution of birth control information was illegal. She jumped bail in 1914 after her arrest for distributing birth control information and left the United States for the United Kingdom to return in 1915.[131] Sanger established a short-lived birth-control clinic in 1916, which was shut down after eleven days and resulted in her arrest.[132] The publicity surrounding the arrest, trial, and appeal sparked birth control activism across the United States.[133]
The first permanent birth-control clinic was established in Britain in 1921 by Marie Stopes working with the Malthusian League.[134] The clinic, run by midwives and supported by visiting doctors,[135] offered women's birth-control advice and taught them the use of a cervical cap. Her clinic made contraception acceptable during the 1920s by presenting it in scientific terms. In 1924 the Society for the Provision of Birth Control Clinics was founded to campaign for municipal clinics; this led to the opening of a second clinic in Greengate, Salford in 1926.[136] Throughout the 1920s, Stopes and other feminist pioneers, including Dora Russell and Stella Browne, played a major role in breaking down taboos about sex. In April 1930 the Birth Control Conference assembled 700 delegates and was successful in bringing birth control and abortion into the political sphere - three months later, the Ministry of Health, in the United Kingdom, allowed local authorities to give birth-control advice in welfare centres.[137]
In 1936 the U.S. court ruled in U.S. v. One Package that medically prescribing contraception to save a persons life or well being was not illegal under the Comstock Law; following this decision, the American Medical Association Committee on Contraception revoked its 1936 statement condemning birth control. A national survey in 1937 showed 71 percent of the adult population supported the use of contraception. By 1938 347 birth control clinics were running in the United States despite their advertisement still being illegal. First Lady Eleanor Roosevelt publicly supported birth control and family planning.[138]
Modern methods
In 1909, Richard Richter developed the first intrauterine device made from silkworm gut, which was further developed and marketed in Germany by Ernst Gräfenberg in the late 1920s.[139] Gregory Pincus and John Rock with help from the Planned Parenthood Federation of America developed the first birth control pills in the 1950s, such as mestranol/noretynodrel, which became publicly available in the 1960s.[140] Medical abortion became an alternative to surgical abortion with the availability of prostaglandin analogs in the 1970s and mifepristone in the 1980s.[141]
Society and culture
Legal positions
Further information: Timeline of reproductive rights legislation
Human rights agreements require most governments to provide family planning and contraceptive information and services. These include the requirement to create a national plan for family planning services, remove laws that limit access to family planning, ensure that a wide variety of safe and effective birth control methods are available including emergency contraceptives, make sure there are appropriately trained healthcare providers and facilities at an affordable price, and create a process to review the programs implemented. If governments fail to do the above it may put them in breach of binding international treaty obligations.[142]
In America, Griswold v. Connecticut overturned a state law prohibiting dissemination of contraception information based on a constitutional right to privacy for marital relationships. In 1971, Eisenstadt v. Baird extended this right to privacy to single people.[143]
In 2010, the United Nations launched the Every Woman Every Child movement to assess the progress toward meeting women's contraceptive needs. The initiative has set a goal of increasing the number of users of modern birth control by 120 million women in the world's 69 poorest countries by the year 2020. Additionally, they aim to eradicate discrimination against girls and young women who seek contraceptives.[144][145] The American Congress of Obstetricians and Gynecologists (ACOG) recommended in 2014 that oral birth control pills should be over the counter medications.[146]
Religious views
Main article: Religion and birth control
Religions vary widely in their views of the ethics of birth control.[147] The Roman Catholic Church officially only accepts natural family planning in certain cases,[148] although large numbers of Catholics in developed countries accept and use modern methods of birth control.[149][150][151] Among Protestants there is a wide range of views from supporting none to allowing all methods of birth control.[152] Views in Judaism range from the stricter Orthodox sect to the more relaxed Reform sect.[153] Hindus may use both natural and artificial contraceptives.[154] A common Buddhist view is that preventing conception is acceptable, while intervening after conception has occurred is not.[155]
In Islam, contraceptives are allowed if they do not threaten health, although their use is discouraged by some.[156] The Quran does not make any explicit statements about the morality of birth control, but contains statements encouraging having children. Muhammad also is reported to have said "marry and procreate".[157]
World Contraception Day
The 26th of September is World Contraception Day, devoted to raising awareness and improving education about sexual and reproductive health, with a vision of a world where every pregnancy is wanted.[158] It is supported by a group of governments and international NGOs, including the Office of Populations Affairs, the Asian Pacific Council on Contraception, Centro Latinamericano Salud y Mujer, the European Society of Contraception and Reproductive Health, the German Foundation for World Population, the International Federation of Pediatric and Adolescent Gynecology, International Planned Parenthood Federation, the Marie Stopes International, Population Services International, the Population Council, the United States Agency for International Development (USAID), and Women Deliver.[158]
Misconceptions
There are a number of common misconceptions regarding sex and pregnancy.[159] Douching after sexual intercourse is not an effective form of birth control.[160] Additionally, it is associated with a number of health problems and thus is not recommended.[161] Women can become pregnant the first time they have sexual intercourse[162] and in any sexual position.[163] It is possible, although not very likely, to become pregnant during menstruation.[164]
Research directions
Females
Improvements of existing birth control methods are needed, as around half of those who get pregnant unintentionally are using birth control at the time.[25] A number of alterations of existing contraceptive methods are being studied, including a better female condom, an improved diaphragm, a patch containing only progestin, and a vaginal ring containing long-acting progesterone.[165] This vaginal ring appears to be effective for three or four months and is currently available in some areas of the world.[165] For women who rarely have sex, the taking of the hormonal birth control levonorgestrel around the time of sex looks promising.[166]
A number of methods to perform sterilization via the cervix are being studied. One involves putting quinacrine in the uterus which causes scarring and infertility. While the procedure is inexpensive and does not require surgical skills, there are concerns regarding long-term side effects.[167] Another substance, polidocanol, which functions in the same manner is being looked at.[165] A device called Essure, which expands when placed in the fallopian tubes and blocks them, was approved in the United States in 2002.[167]
Males
Main article: Male contraceptive
Methods of male birth control include condoms, vasectomies and withdrawal.[168][169] Between 25 and 75% of males who are sexually active would use hormonal birth control if it was available for them.[118][168] A number of hormonal and non-hormonal methods are in trials,[118] and there is some research looking at the possibility of contraceptive vaccines.[170]
A reversible surgical method under investigation is reversible inhibition of sperm under guidance (RISUG) which consists of injecting a polymer gel, styrene maleic anhydride in dimethyl sulfoxide, into the vas deferens. An injection with sodium bicarbonate washes out the substance and restores fertility. Another is an intravas device which involves putting a urethane plug into the vas deferens to block it. A combination of an androgen and a progestin seems promising, as do selective androgen receptor modulators.[118] Ultrasound and methods to heat the testicles have undergone preliminary studies.[171]
Other animals
Neutering or spaying, which involves removing some of the reproductive organs, is often carried out as a method of birth control in household pets. Many animal shelters require these procedures as part of adoption agreements.[172] In large animals the surgery is known as castration.[173] Birth control is also being considered as an alternative to hunting as a means of controlling overpopulation in wild animals.[174] Contraceptive vaccines have been found to be effective in a number of different animal populations.[175][176]
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- ^ a b Cates, W., Steiner, M. J. (2002). "Dual Protection Against Unintended Pregnancy and Sexually Transmitted Infections: What Is the Best Contraceptive Approach?". Sexually Transmitted Diseases 29 (3): 168–174. doi:10.1097/00007435-200203000-00007. PMID 11875378.
- ^ "Statement on Dual Protection against Unwanted Pregnancy and Sexually Transmitted Infections, including HIV" (PDF). International Planned Parenthood Federation. May 2000.
- ^ Gupta, Ramesh C. (2011-02-25). Reproductive and Developmental Toxicology. Academic Press. p. 105. ISBN 978-0-12-382032-7.
- ^ Country Comparison: Maternal Mortality Rate in The CIA World Factbook
- ^ a b Sholapurkar, SL (February 2010). "Is there an ideal interpregnancy interval after a live birth, miscarriage or other adverse pregnancy outcomes?". Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology 30 (2): 107–10. doi:10.3109/01443610903470288. PMID 20143964.
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- ^ Darney, Leon Speroff, Philip D. (2010). A clinical guide for contraception (5th ed.). Philadelphia, Pa.: Lippincott Williams & Wilkins. p. 315. ISBN 1-60831-610-6.
- ^ a b c d Naz, RK; Rowan, S (June 2009). "Update on male contraception.". Current Opinion in Obstetrics and Gynecology 21 (3): 265–9. doi:10.1097/gco.0b013e328329247d. PMID 19469045.
- ^ Cleland, JG; Ndugwa, RP; Zulu, EM (Feb 1, 2011). "Family planning in sub-Saharan Africa: progress or stagnation?". Bulletin of the World Health Organization 89 (2): 137–43. doi:10.2471/BLT.10.077925. PMC 3040375. PMID 21346925.
- ^ a b Darroch, JE; Singh, S (May 18, 2013). "Trends in contraceptive need and use in developing countries in 2003, 2008, and 2012: an analysis of national surveys.". Lancet 381 (9879): 1756–1762. doi:10.1016/S0140-6736(13)60597-8. PMID 23683642.
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- ^ a b c Cuomo, Amy (2010). "Birth control". In O'Reilly, Andrea. Encyclopedia of motherhood. Thousand Oaks, Calif.: Sage Publications. pp. 121–126. ISBN 9781412968461.
- ^ Lipsey, Richard G.; Carlaw, Kenneth; Bekar, Clifford (2005). "Historical Record on the Control of Family Size". Economic Transformations: General Purpose Technologies and Long-Term Economic Growth. Oxford University Press. pp. 335–40. ISBN 978-0-19-928564-8.
- ^ unspecified (2001). "Herbal contraceptives and abortifacients". In Bullough, Vern L. Encyclopedia of birth control. Santa Barbara, Calif.: ABC-CLIO. pp. 125–128. ISBN 9781576071816.
- ^ McTavish, Lianne (2007). "Contraception and birth control". In Robin, Diana. Encyclopedia of women in the Renaissance : Italy, France, and England. Santa Barbara, Calif.: ABC-CLIO. pp. 91–92. ISBN 9781851097722.
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- ^ Simms, Madeleine (27 January 1977). "Review: A History of the Malthusian League 1877-1927". New Scientist.
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- ^ Wilkinson Meyer, Jimmy Elaine (2004). Any friend of the movement: networking for birth control, 1920–1940. Ohio State University Press. p. 184. ISBN 978-0-8142-0954-7.
- ^ Galvin, Rachel (1998). "Margaret Sanger's "Deeds of Terrible Virtue"". National Endowment for the Humanities.
- ^ Karen Pastorello (2013). The Progressives: Activism and Reform in American Society, 1893 - 1917. John Wiley & Sons. p. 65. ISBN 9781118651124.
- ^ Baker, Jean H. (2012). Margaret Sanger : a life of passion (First pbk. ed.). pp. 115–117. ISBN 9781429968973.
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- ^ Hall, Ruth (1977). Passionate Crusader. Harcourt, Brace, Jovanovich. p. 186.
- ^ Marie Carmichael Stopes (1925). The First Five Thousand. London: John Bale, Sons & Danielsson. p. 9. OCLC 12690936.
- ^ Herbert, Michael (2012 09.55 BST). "Salford's birth control pioneers". The Guardian. Retrieved 28 May 2015.
- ^ Hall, Lesley (2011). The life and times of Stella Browne : feminist and free spirit. London: I. B. Tauris. p. 173. ISBN 9781848855830.
- ^ Alesha Doan (2007). Opposition and Intimidation: The Abortion Wars and Strategies of Political Harassment. University of Michigan Press. pp. 53–54. ISBN 9780472069750.
- ^ Fritz, Marc A.; Speroff, Leon (2011). "Intrauterine contraception". Clinical gynecologic endocrinology and infertility (8th ed.). Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. pp. 1095–1098. ISBN 978-0-7817-7968-5.
- ^ Poston, Dudley (2010). Population and Society: An Introduction to Demography. Cambridge University Press. p. 98. ISBN 9781139489386.
- ^ Kulier, Regina; Kapp, Nathalie; Gülmezoglu, A. Metin; Hofmeyr, G. Justus; Cheng, Linan; Campana, Aldo (November 9, 2011). "Medical methods for first trimester abortion". Cochrane Database of Systematic Reviews (11): CD002855. doi:10.1002/14651858.CD002855.pub4. PMID 22071804.
- ^ Cottingham J., Germain A., Hunt P. (2012). "Use of human rights to meet the unmet need for family planning". The Lancet 380 (9837): 172–180. doi:10.1016/S0140-6736(12)60732-6. PMID 22784536.
- ^ Alesha Doan (2007). Opposition and Intimidation: The Abortion Wars and Strategies of Political Harassment. University of Michigan Press. pp. 62–63. ISBN 9780472069750.
- ^ Susheela Singh; Jacqueline E. Darroch (June 2012). "Adding It Up: Costs and Benefits of Contraceptive Services Estimates for 2012" (PDF). Guttmacher Institute and United Nations Population Fund (UNFPA), 201.
- ^ "About Every Woman Every Child". United Nations Foundation. Retrieved 21 September 2013.
- ^ ACOG (September 9, 2014). "ACOG Statement on OTC Access to Contraception". Retrieved 11 September 2014.
- ^ Srikanthan, A; Reid, RL (February 2008). "Religious and cultural influences on contraception" (PDF). Journal of obstetrics and gynaecology Canada – Journal d'obstetrique et gynecologie du Canada (JOGC) 30 (2): 129–37. PMID 18254994.
- ^ Pope Paul VI (1968-07-25). "Humanae Vitae: Encyclical of Pope Paul VI on the Regulation of Birth". Vatican. Retrieved 2006-10-01.
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- ^ Bob Digby; et al. (2001). Bob Digby, ed. Heinemann 16-19 Geography: Global Challenges Student Book 2nd Edition. Heinemann. p. 158. ISBN 978-0-435-35249-3.
- ^ Rengel, Marian (2000). Encyclopedia of birth control. Phoenix, Ariz: Oryx Press. p. 202. ISBN 978-1-57356-255-3.
- ^ Bennett, Jana Marguerite (2008). Water is thicker than blood : an Augustinian theology of marriage and singleness. Oxford: Oxford University Press. p. 178. ISBN 978-0-19-531543-1.
- ^ Feldman, David M. (1998). Birth Control in Jewish Law. Lanham, MD: Jason Aronson. ISBN 0-7657-6058-4.
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- ^ "More Questions & Answers on Buddhism: Birth Control and Abortion". Alan Khoo. Retrieved 2008-06-14.
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- ^ a b "World Contraception Day".
- ^ Hutcherson, Hilda (2002). What your mother never told you about s.e.x (1st Perigee ed.). New York: Perigee Book. p. 201. ISBN 9780399528538.
- ^ Rengel, Marian (2000). Encyclopedia of birth control. Phoenix, Ariz: Oryx Press. p. 65. ISBN 9781573562553.
- ^ Cottrell, BH (Mar–Apr 2010). "An updated review of evidence to discourage douching.". MCN. The American journal of maternal child nursing 35 (2): 102–7; quiz 108–9. doi:10.1097/NMC.0b013e3181cae9da. PMID 20215951.
- ^ Alexander, William (2013). New Dimensions In Women's Health - Book Alone (6th ed.). Jones & Bartlett Publishers. p. 105. ISBN 9781449683757.
- ^ Sharkey, Harriet (2013). Need to Know Fertility and Conception and Pregnancy. HarperCollins. p. 17. ISBN 9780007516865.
- ^ Strange, Mary (2011). Encyclopedia of women in today's world. Thousand Oaks, Calif.: Sage Reference. p. 928. ISBN 9781412976855.
- ^ a b c Jensen, JT (October 2011). "The future of contraception: innovations in contraceptive agents: tomorrow's hormonal contraceptive agents and their clinical implications.". American journal of obstetrics and gynecology 205 (4 Suppl): S21–5. doi:10.1016/j.ajog.2011.06.055. PMID 21961821.
- ^ Halpern, V; Raymond, EG; Lopez, LM (Sep 26, 2014). "Repeated use of pre- and postcoital hormonal contraception for prevention of pregnancy.". The Cochrane database of systematic reviews 9: CD007595. doi:10.1002/14651858.CD007595.pub3. PMID 25259677.
- ^ a b Castaño, PM; Adekunle, L (March 2010). "Transcervical sterilization.". Seminars in reproductive medicine 28 (2): 103–9. doi:10.1055/s-0030-1248134. PMID 20352559.
- ^ a b Glasier, A (November 2010). "Acceptability of contraception for men: a review.". Contraception 82 (5): 453–6. doi:10.1016/j.contraception.2010.03.016. PMID 20933119.
- ^ Kogan, P; Wald, M (Feb 2014). "Male contraception: history and development.". The Urologic clinics of North America 41 (1): 145–61. doi:10.1016/j.ucl.2013.08.012. PMID 24286773.
- ^ Naz, RK (July 2011). "Antisperm contraceptive vaccines: where we are and where we are going?". American journal of reproductive immunology (New York, N.Y. : 1989) 66 (1): 5–12. doi:10.1111/j.1600-0897.2011.01000.x. PMID 21481057.
- ^ Ojeda, edited by William J. Kovacs, Sergio R. (2011). Textbook of endocrine physiology (6th ed.). Oxford: Oxford University Press. p. 262. ISBN 9780199744121.
- ^ Millar, Lila (2011). Infectious Disease Management in Animal Shelters. John Wiley & Sons. ISBN 9781119949459.
- ^ Ackerman, [edited by] Lowell (2007). Blackwell's five-minute veterinary practice management consult (1st ed.). Ames, Iowa: Blackwell Pub. p. 80. ISBN 9780781759847.
- ^ Boyle, Rebecca (March 3, 2009). "Birth control for animals: a scientific approach to limiting the wildlife population explosion". Popular Science. New York: PopSci.com.
- ^ Kirkpatrick, JF; Lyda, RO; Frank, KM (July 2011). "Contraceptive vaccines for wildlife: a review.". American journal of reproductive immunology (New York, N.Y. : 1989) 66 (1): 40–50. doi:10.1111/j.1600-0897.2011.01003.x. PMID 21501279.
- ^ Levy, JK (July 2011). "Contraceptive vaccines for the humane control of community cat populations.". American journal of reproductive immunology (New York, N.Y. : 1989) 66 (1): 63–70. doi:10.1111/j.1600-0897.2011.01005.x. PMID 21501281.
Further reading
- Speroff, Leon; Darney, Philip D. (November 22, 2010). A clinical guide for contraception (5th ed.). Philadelphia, Pa.: Lippincott Williams & Wilkins. ISBN 978-1-60831-610-6.
- Stubblefield, Phillip G.; Roncari, Danielle M. (December 12, 2011). "Family Planning", pp. 211–269, in Berek, Jonathan S. (ed.) Berek & Novak's Gynecology, 15th ed. Philadelphia: Lippincott Williams & Wilkins, ISBN 978-1-4511-1433-1.
- Jensen, Jeffrey T.; Mishell, Daniel R. Jr. (March 19, 2012). "Family Planning: Contraception, Sterilization, and Pregnancy Termination", pp. 215–272, in Lentz, Gretchen M.; Lobo, Rogerio A.; Gershenson, David M.; Katz, Vern L. (eds.) Comprehensive Gynecology, 6th ed. Philadelphia: Mosby Elsevier, ISBN 978-0-323-06986-1.
- Gavin, L; Moskosky, S; Carter, M; Curtis, K; Glass, E; Godfrey, E; Marcell, A; Mautone-Smith, N; Pazol, K; Tepper, N; Zapata, L; Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion,, CDC (Apr 25, 2014). "Providing Quality Family Planning Services: Recommendations of CDC and the U.S. Office of Population Affairs". MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control 63 (RR-04): 1–54. PMID 24759690.
External links
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Wikimedia Commons has media related to Contraception. |
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Wikiquote has quotations related to: Birth control |
- Birth control at DMOZ
- World Health Organization Department of Reproductive Health and Research and Johns Hopkins Bloomberg School of Public Health (2011). Family planning: A global handbook for providers: Evidence-based guidance developed through worldwide collaboration (PDF) (Rev. and Updated ed.). Geneva, Switzerland: WHO and Center for Communication Programs. ISBN 978-0-9788563-7-3.
- Division of Reproductive Health, National Center for Chronic Disease Prevention and Health, Promotion (Jun 21, 2013). "U.S. Selected practice recommendations for contraceptive use, 2013: adapted from the world health organization selected practice recommendations for contraceptive use". MMWR. Recommendations and reports: Morbidity and mortality weekly report. Recommendations and reports / Centers for Disease Control (2nd ed.) 62 (RR-05): 1–60. PMID 23784109.
- "Birth Control Comparison Chart". Cedar River Clinics.
- Bulk procurement of birth control by the World Health Organization
Family planning and reproductive health
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Rights |
- Compulsory sterilization
- Contraceptive security
- Genital integrity
- Circumcision controversies
- Genital modification and mutilation
- Intersex
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Education |
- Genetic counseling
- Pre-conception counseling
- Sex education
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Planning |
- Assisted reproductive technology
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Health |
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Medicine |
- Andrology
- Genitourinary medicine
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- Obstetrics and gynaecology
- Reproductive endocrinology and infertility
- Sexual medicine
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Disorder |
- Disorders of sex development
- Infertility
- Reproductive system disease
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By country |
- China
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History |
- Birth control movement in the United States
- History of condoms
- Social hygiene movement
- Timeline of reproductive rights legislation
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Policy |
- One-child policy
- Two-child policy
- Financial
- Baby bonus
- Bachelor tax
- Birth credit
- Child benefit
- Tax on childlessness
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Birth control methods (G02B, G03A)
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Comparison |
- Comparison of birth control methods
- Long-acting reversible contraception
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Behavioral |
- Avoiding vaginal intercourse: Abstinence
- Anal sex
- Masturbation
- Non-penetrative sex
- Oral sex
Including vaginal intercourse: Breastfeeding infertility (LAM)
- Calendar-based methods (rhythm, etc.)
- Fertility awareness (Billings ovulation method
- Creighton Model, etc.)
- Withdrawal
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Barrier and / or
spermicidal |
- Cervical cap
- Condom
- Contraceptive sponge
- Diaphragm
- Female condom
- Spermicide
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Hormonal
(formulations) |
Combined |
- Contraceptive patch
- Extended cycle
- Injectable
- NuvaRing
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Progestogen-only |
- LARC (Depo-Provera
- Implanon/Nexplanon
- Norplant/Jadelle)
- Progestogen-only pill / 'minipill'
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Anti-estrogen |
- Ormeloxifene (Centchroman)
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Post-intercourse |
- Emergency contraception (pills or copper IUD) (Ulipristal acetate
- Yuzpe regimen)
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Intrauterine device |
- IUD with copper
- IUD with progestogen (Mirena)
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Abortion |
- Medical (RU-486/abortion pill)
- Surgical
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Sterilization |
- Female: Essure
- Tubal ligation
Male: Vasectomy
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Experimental |
- Reversible inhibition of sperm under guidance (Vasalgel)
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Index of reproductive medicine
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Description |
- Anatomy
- Physiology
- Development
- sex determination and differentiation
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Disease |
- Infections
- Congenital
- Neoplasms and cancer
- male
- female
- gonadal
- germ cell
- Other
- Symptoms and signs
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Treatment |
- Procedures
- Drugs
- benign prostatic hypertrophy
- erectile dysfunction and premature ejaculation
- sexual dysfunction
- infection
- hormones
- androgens
- estrogens
- progestogens
- GnRH
- prolactin
- Assisted reproduction
- Birth control
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Human impact on the environment
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General |
- Anthropocene
- Environmental issues
- Human impact
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- List of issues
- Planetary boundaries
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Causes |
- Agriculture
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- cleaning agents
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- land use
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- human overpopulation
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Effects |
- Biodiversity threats
- Climate change
- Deforestation
- Desertification
- Ecocide
- Erosion
- Coral reefs
- Freshwater cycle
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- Holocene extinction
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Mitigation |
- Birth control
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- Commons
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Authority control |
- LCCN: sh85031589
- GND: 4070794-5
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