我们调查了宫内放置金属单环10～21年的妇女,共194例,其中取出环者74例,继续带环者120例。74例已取环妇女中,69例在取环同时作子宫内膜病检,除1例环嵌顿并发慢性子宫肌炎外,未发现其它严重病变,亦未发现癌变或明显的癌前期变化,复查宫颈刮片,亦无1例间变。取出的环,外形有改变 We investigated the intrauterine placement of metal single ring 10 to 21 years of women, a total of 194 cases, of which 74 cases were removed ring, 120 cases continue to band around. Of the 74 women who had taken the ring, 69 were taking the ring at the same time for endometrial disease examination, except for 1 case of ring incarcerated chronic myo-myositis, no other serious disease was found, and no canceration or obvious precancerous changes were found , Review of cervical smear, there is no change between 1 case. Remove the ring, the shape has changed