输卵管绝育(下称绝育术)是一种常用的永久性控制生育方法,近10年来由于对甾体避孕药一些副作用的顾虑,并为免于多次给药许多妇女都选用绝育术,无论在发达国家或发展中国家,均为采用的主要避孕方法之一,美国育龄妇女中8%以上作绝育术。总的来说绝育术有效率高,失败率低(0～12‰),但在绝育术后发生的妊娠多为异位妊娠,Loffer报告腹腔镜绝育失败者约90%为异位妊娠,据统计绝育后异位妊娠占所有异位妊娠的10%以上,因此,对绝育术后异位妊娠必须有一定认识,本文复习了有关文献,探讨了绝育术后发生异位妊娠的一些机制,并略述防止其发生的一些 Tubal sterilization (hereinafter referred to as sterilization) is a commonly used permanent method of birth control. In the past 10 years, due to some side effects of steroid contraceptives, and to avoid multiple administrations, many women choose sterilization, Developed countries or developing countries are one of the major contraceptive methods used, and more than 8% of US women of childbearing age make sterilization. In general, sterilization is highly efficient and has a low failure rate (0-12%), but most of the pregnancies that occur after sterilization are ectopic pregnancies. Loffer reports about 90% of laparoscopic sterility failures as ectopic pregnancies. According to Statistics of ectopic pregnancy after ectopic pregnancy accounted for more than 10% of all ectopic pregnancy, therefore, there must be some understanding of ectopic pregnancy after sterilization, the paper reviewed the literature to explore some mechanisms of ectopic pregnancy after sterilization and Outlines some of the things that prevent it from happening