WordNet

cause emotional anguish or make miserable; "It pains me to see my children not being taught well in school" (同)anguish, hurt
a symptom of some physical hurt or disorder; "the patient developed severe pain and distension" (同)hurting
a bothersome annoying person; "that kid is a terrible pain" (同)pain in the neck, nuisance
a somatic sensation of acute discomfort; "as the intensity increased the sensation changed from tickle to pain" (同)pain_sensation, painful sensation
emotional distress; a fundamental feeling that people try to avoid; "the pain of loneliness" (同)painfulness
of or related to the anus; "anal thermometer"
a stage in psychosexual development when the childs interest is concentrated on the anal region; fixation at this stage is said to result in orderliness, meanness, stubbornness, compulsiveness, etc. (同)anal retentive
a collection of anecdotes about a person or place

PrepTutorEJDIC

〈C〉〈U〉(肉体のある部分の)『苦痛』,『痛み』 / 〈U〉(精神的な)『苦痛』,心痛 / 《複数形で》骨折り,苦労,努力 / 〈C〉不快感,いやな感じ;うんざりさせるもの,やっかい者 / (肉体的・精神的に)…‘に'苦痛を与える(受動態にできない)
肛門(こうもん)(anus)の
(次にくる語の発音が母音で始まるときに用いる) / (子音[h]で始まり第1音節に強勢のない語の場合はanを用いることがある.ただし,この場合は[h]を発音しない)
《補語にのみ用いて》腹を立てて / 《補語にのみ用いて》(心が)鐘ついて / 不愉快な,気まずい

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/05/09 21:32:45」(JST)

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Rectal pain is the symptom of pain in the area of the rectum. A number of different causes (68) have been documented.^[1]

Differential diagnosis

Anal fissures

One of the most common causes of rectal pain is an anal fissure.^[2] It involves a tear in the anal canal probably due to trauma from defecation^[3] and are usually treated effectively with sitz baths, stool softeners, and analgesics.^[2]

LAS and proctalgia fugax

Two more highly common causes of functional anorectal pain are levator ani syndrome (LAS) and proctalgia fugax. Both of these conditions are thought to be caused by muscle spasms of the either the levator ani muscle or the anal sphincter muscle respectively, and may overlap symptomatically with a third less-common condition called coccygodynia which is the result of previous trauma to the coccyx bone. Stress, prolonged sitting, and constipation all seem to be associated with LAS. The majority (90%) of those reporting chronic episodes of such pain are women. Some researchers group these conditions under the medical category of "tension myalgia of the pelvic floor". Less than a third of those experiencing these conditions seek medical treatment for them. Treatment can involve the use of antispasmotic medications as well as the down-training (conscious involvement and relaxation of previously unconscious muscle movements) so that spasms occur less frequently or not at all.^[4]

Anorectal abscess

An anorectal abscess is an infection that forms a pocket of pus within the tissues around the anus. It is treated surgically by incision and drainage.^[2]

Infections

Bacterial, viral, and protozoal infections may occur in the area surround the rectum. These may be the result of a sexually transmitted disease.^[2]

Other

Hemorrhoids or rectal foreign body.^[1]

References

^ ^a ^b "Differential Diagnosis for Rectal pain Rectalgia".
^ ^a ^b ^c ^d Janicke DM, Pundt MR (November 1996). "Anorectal disorders". Emerg. Med. Clin. North Am. 14 (4): 757–88. doi:10.1016/S0733-8627(05)70278-9. PMID 8921768.
^ Metcalf A (November 1995). "Anorectal disorders. Five common causes of pain, itching, and bleeding". Postgrad Med 98 (5): 81–4, 87–9, 92–4. PMID 7479460.
^ Giulio Aniello Santoro; Andrzej Paweł Wieczorek; Clive I. Bartram (27 October 2010). Pelvic Floor Disorders: Imaging and Multidisciplinary Approach to Management. Springer. pp. 601–603. ISBN 978-88-470-1542-5.

UpToDate Contents

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1. 一過性直腸痛 proctalgia fugax
2. 裂肛：臨床症状、診断、および予防 anal fissure clinical manifestations diagnosis prevention
3. 肛門直腸瘻：臨床症状、診断、およびマネージメントの原則 anorectal fistula clinical manifestations diagnosis and management principles
4. 痔核の治療 treatment of hemorrhoids
5. 肛門周囲膿瘍：臨床症状、診断、および治療 perianal abscess clinical manifestations diagnosis treatment

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Simultaneous extraction of propofol and propofol glucuronide from hair followed by validated LC-MS/MS analyses.

Maas A1, Maier C2, Iwersen-Bergmann S3, Madea B4, Hess C5.
Journal of pharmaceutical and biomedical analysis.J Pharm Biomed Anal.2017 Nov 30;146:236-243. doi: 10.1016/j.jpba.2017.08.035. Epub 2017 Sep 1.
PMID 28888172

Retained Needle Following Transanal Hemorrhoidal Dearterialization.

Celentano V1, Banerjee A, Luvisetto F, Naqvi S, Khan J.
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PMID 28991089