近年来,由于诸多因素影响,剖宫产率逐年上升,瘢痕子宫育龄妇女也相应增加,从而也为再次妊娠的处理带来了新的问题。利凡诺羊膜腔内注射是中期妊娠引产安全而有效的方法,而有剖宫产史的孕妇,由于宫颈成熟度差,应用利凡诺引产有可能引起宫体部强制性宫缩而宫颈扩张迟缓,使宫腔压力过大 In recent years, due to many factors, the rate of cesarean section increases year by year, and the number of women of childbearing age in scars also increases correspondingly, which brings new problems for the treatment of second pregnancy. Rivanol Intra-amniotic injection is a safe and effective method of induction of labor in the second trimester, and pregnant women with a history of cesarean section, due to poor maturation of the cervix, the application of rivanol induced labor may cause Palace Palace mandatory contractions and cervical dilatation Slow, so that uterine pressure is too large