书育环异位是宫内金属节育环的一种较为严重的并发症,现行诊断方法虽多,但都不够简便;如透视下内诊、宫腔内硫酸钡导尿管透视、铅指双合诊照片、子宫腔放置探针或子宫腔碘囊照片、子宫碘油造影或气腹子宫碘油造影、腹腔镜、宫腔镜、超声诊断等都较为复杂。因此,我们自1974年起试用子宫内放置 Heterotopic sutra is a more serious intrauterine contraceptive ring, although the current diagnosis of many, but not simple enough; such as under fluoroscopy, intrauterine catheterization of barium sulfate, lead refers to the double Clinic photos, intrauterine probe or uterine cavity IOP capsule photos, uterine lipiodol angiography or pneumoperitoneum lipiodol contrast, laparoscopy, hysteroscopy, ultrasound diagnosis are more complicated. Therefore, we have tried to place the uterus since 1974