Thirteen cases of transmigration with intrauterine contraceptive device (IUD) was analyzed from 1991 to 1998. It was found that the main cause suspecting IUD transmigration was failure of removal of IUD with pregnancy in 8 patients out of 13 cases.

• 对我院 1991年至 1998年住院 13例宫内节育器 (Intrauterine Contraceptive Device ,IUD)异位的分析发现 ,怀疑 IU D异位的主要原因为带器妊娠取环失败 (8/ 13)。