患者女,53岁。因便后肛周疼痛伴便秘半年,下腹痛4个月来我院就诊。患者于半年前无明显诱因出现便后肛周疼痛,伴便秘,曾到当地多家医院就诊,均诊断为子宫内膜异位症,给予抗感染治疗,症状无明显好转而来我院就诊。4个月前肛周疼痛自行消失,转为下腹部疼痛,以每日晨5点钟左右明显, Female patient, 53 years old. Because after perianal pain with constipation for six months, abdominal pain for 4 months to our hospital. Patients with no obvious incentive to appear six months ago after perianal pain, with constipation, had to a number of local hospitals for treatment, were diagnosed as endometriosis, given anti-infective treatment, no significant improvement in symptoms from our hospital. 4 months ago perianal pain disappear on their own, into lower abdominal pain to 5 o’clock every morning about obvious,