oligomenorrhea

希発月経 　

WordNet

1. abnormally light or infrequent menstruation

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/05/26 02:47:37」(JST)

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Oligomenorrhea
Classification and external resources
Specialty	urology
ICD-10	N91.5
ICD-9-CM	626.1
DiseasesDB	14843

Oligomenorrhea (or oligomenorrhoea) is infrequent (or, in occasional usage, very light) menstruation. More strictly, it is menstrual periods occurring at intervals of greater than 35 days, with only four to nine periods in a year. Also, menstrual periods should have been regularly established previously before the development of infrequent flow. The duration of such events may vary.

Causes

Oligomenorrhea can be a result of prolactinomas (adenomas of the anterior pituitary). It may also be caused by thyrotoxicosis, hormonal changes in perimenopause, Prader–Willi syndrome, and Graves disease. "Endurance exercises such as running or swimming can affect the reproductive physiology of women athletes. Female runners, swimmers and ballet dancers menstruate infrequently in comparison to nonatheletic women of comparable age or not at all (amenorrhea). The degree of menstrual abnormality is directly proportional to the intensity of the exercise. For example, Malina et al., (1978) have shown menstrual irregularity is more common, and more severe among tennis players than among golfers" (modified by a student paper written by A. Lord) Breastfeeding has also been linked to irregularity of menstrual cycles due to hormones which delay ovulation.

Women with polycystic ovary syndrome (PCOS) are also likely to suffer from oligomenorrhea. PCOS is a condition in which excessive androgens (male sex hormones) are released by the ovaries. Women with PCOS show menstrual irregularities that range from oligomenorrhea and amenorrhea, to very heavy, irregular periods. The condition affects about 6% of premenopausal women and is related to excess androgen production.

Eating disorders can also result in oligomenorrhea. Although menstrual disorders are most strongly associated with Anorexia nervosa, Bulimia nervosa may also result in oligomenorrhea or amenorrhea. There is some controversy regarding the exact mechanism for the menstrual dysregulation, since amenorrhea may sometimes precede substantial weight loss in some anorexics; thus some researchers hypothesize that some as-yet unrecognized neuroendocrine phenomenon may be involved, and the menstrual irregularities may be related to the biological undergirding of the disorders, rather than a result of nutritional deficiencies.

See also

• Amenorrhea, a total cessation of the menstrual period
• Menorrhagia, which is unusually heavy periods

References

UpToDate Contents

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• 1. 思春期における希発月経の評価 evaluation of oligomenorrhea in adolescence
• 2. 続発性無月経の評価およびマネージメント evaluation and management of secondary amenorrhea
• 3. 成人における多嚢胞性卵巣症候群の診断 diagnosis of polycystic ovary syndrome in adults
• 4. 思春期における多嚢胞性卵巣症候群の診断的評価 diagnostic evaluation of polycystic ovary syndrome in adolescents
• 5. まれな先天性副腎過形成 uncommon congenital adrenal hyperplasias

English Journal

• Increasing hirsutism due to a granulosa-cell tumor in a woman with polycystic ovary syndrome: case report and review of the literature.

• Vera L, Accornero M, Mora M, Valenzano-Menada M, Minuto F, Giusti M.SourceDepartment of Internal Medicine .
• Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology.Gynecol Endocrinol.2013 Jan 18. [Epub ahead of print]
• Abstract Background: Granulosa-cell tumors (GCT), rare malignancies that arise from sex-cord stromal cells, account for less than 5% of ovarian tumors. These tumors present with an endocrine syndrome and mass signs. Surgery is the primary treatment approach. The risk of recurrence is more frequent
• PMID 23327624

• The Quality Of Life of Adolescents with Menstrual Problems.

• Nur Azurah AG, Sanci L, Moore E, Grover S.SourceUniversiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia; Royal Children's Hospital, Melbourne, Australia; University of Melbourne, Melbourne, Australia; Murdoch Children Research Institute, Melbourne, Australia. Electronic address: nurazurahag@gmail.com.
• Journal of pediatric and adolescent gynecology.J Pediatr Adolesc Gynecol.2013 Jan 18. pii: S1083-3188(12)00239-2. doi: 10.1016/j.jpag.2012.11.004. [Epub ahead of print]
• OBJECTIVE: To date, very few publications have examined the health related quality of life (HRQL) in the younger population with menstrual problems, despite their high prevalence in adolescent girls. We describe the health-related quality of life (HRQL) among adolescents with menstrual problems and
• PMID 23337310

• Association between menstrual cycle irregularities and endocrine and metabolic characteristics of the polycystic ovary syndrome.

• Panidis D, Tziomalos K, Chatzis P, Papadakis E, Delkos D, Tsourdi EA, Kandaraki EA, Katsikis I.SourceDivision of Endocrinology and Human Reproduction, Second Department of Obstetrics and Gynecology, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece and.
• European journal of endocrinology / European Federation of Endocrine Societies.Eur J Endocrinol.2013 Jan 17;168(2):145-52. doi: 10.1530/EJE-12-0655. Print 2013.
• OBJECTIVE: Insulin resistance (IR) is frequent in polycystic ovary syndrome (PCOS) and contributes to the increased risk for type 2 diabetes mellitus and cardiovascular disease of this population. Several markers of IR are used but most are expensive or have limited sensitivity and specificity. Prel
• PMID 23109645

Japanese Journal

• 若年性脳梗塞を発症しFabry病類似のT1-weighted imaging-pulvinar signを呈したTurner症候群の1例

• 高 尚均,河野 彬子,山野井 貴彦,徳永 惠子
• 臨床神経学 54(5), 440-443, 2014
• 症例は39歳女性である．数日の経過で進行する右上下肢脱力のため当科へ入院した．頭部MRIで左内包後脚から放線冠にかけて急性期脳梗塞像と両側中大脳動脈狭窄，および両側視床枕に対称性のT1強調画像高信号所見をみとめた．同部位はT2強調画像では信号変化を示さず，Fabry病を示唆するとされているT1-weighted imaging-pulvinar sign（T1 pulvinar sign）を呈して …
• NAID 130004505585

• Intake of Vinegar Beverage Is Associated with Restoration of Ovulatory Function in Women with Polycystic Ovary Syndrome

• Wu Di,Kimura Fuminori,Takashima Akiko,Shimizu Yoshihiko,Takebayashi Akie,Kita Nobuyuki,Zhang GuangMei,Murakami Takashi
• The Tohoku Journal of Experimental Medicine 230(1), 17-23, 2013
• … It is defined as a condition involving the combination of hyperandrogenism and chronic oligomenorrhea or anovulation, and is thought to have a variety of etiologies. …
• NAID 130004822366

• 思春期の月経周期に対する鍼通電療法の効果の検討

• 田口 玲奈,吉元 授,今井 賢治 [他]
• 全日本鍼灸学会雑誌 = Journal of the Japan Society of Acupuncture and Moxibustion 62(2), 148-156, 2012-05
• NAID 40019352731

Related Links

• Oligomenorrhea - Wikipedia, the free encyclopedia

Oligomenorrhea (or oligomenorrhoea) is infrequent (or, in occasional usage, very light) menstruation. More strictly, it is menstrual periods occurring at intervals of greater than 35 days, with only four to nine periods in a year. Also, menstrual ...

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