患者35岁,因节育环嵌顿,于1987年12月4日入院。患者于1978年4月自然分娩后6个月,哺乳期中在当地乡卫生院放置金属单环一枚,上环后7个月妊娠,宫内环情况不详。1979年11月足月自然分娩一男婴。1980年5月(第三次产后半年)又放置节育环一枚。1983年2月行腹式绝育,绝育术后半年,X线透视发现盆腔内有二枚环影乃行取环术,术中仅取出一枚,另一枚未能取出。术后再次透视盆腔仍有环一枚存在,继之在当地再次取环未成功。近一年来感腹痛明显,来北京某医院取环亦未成功。入我院后在B超下试取,术中觉环钩触及环缘,但牵拉环时子宫随之移 The patient, 35 years old, was admitted to hospital on December 4, 1987 because of incarceration. Patients in April 1978 after 6 months of natural childbirth, breast-feeding in the local township hospitals placed a metal ring, 7 months after the ring of pregnancy, intrauterine ring situation unknown. November 1979 full-term natural delivery of a baby boy. 1980 May (six months after the third postpartum) and placed a birth control ring. February 1983 line abdominal sterilization, sterilization six months after surgery, X-ray found in the pelvis there are two ring shadow is a line of surgery, only remove one during the operation, the other failed to remove. After pelvic surgery again there is still a ring there, followed by another failed to take the ring again. Feeling pain in the past year significantly, to a hospital in Beijing has not been successful. Into our hospital after the B-sub-test, surgery hook ring touch ring edge, but when pulling the ring with the uterus