例１．张某３５岁，孕２产１，二年前月经后４ｄ行宫内放置节育器避孕。一个月后透视复查正常。近一个月来，阴道流有血水样分泌物，伴有下腹部不适。于当地卫生所检查，发现穹窿部的宫颈左侧有一点状硬物感，伴有宫颈举痛，经Ｂ超检查宫内节育器下移并歪斜，在无菌操作下... Example 1. Zhang 35 years old, 2 pregnant 1, two years ago after menstruation 4d intrauterine contraceptive placement. A month after the review of normal. Nearly a month, the vaginal flow of blood-like secretions, accompanied by lower abdominal discomfort. Check the local health clinic and found that the left part of the fornix part of the cervix has a little hard-like sense of the matter, accompanied by cervical pain, the B-test IUD down and skewed, under aseptic operation.