对于妊娠12～14周,当钳吸人工流产扩张宫颈时,常有下腹痛、呕吐,有的不能忍受手术,若宫颈坚硬者,扩张困难,延长手术时间,偶可造成意外损伤。我科于1967年1月至1975年1月对于妊娠12～14周采用钳刮吸引人工流产者,均于术前用牛膝扩张宫颈,因牛膝有良好的吸水性和膨胀性,使宫颈扩张并对子宫可能有刺激和收缩作用,缩短手术时间,有利于手术操作,减少 For pregnant 12 to 14 weeks, when the forceps dilatation of the cervix abortion, often lower abdominal pain, vomiting, and some can not tolerate surgery, if the hard cervical, expansion difficulties, extend the operation time, even can cause accidental injury. Our department from January 1967 to January 1975 for 12 to 14 weeks of pregnancy using forceps to attract induced abortion, were preoperative with achyranthes dilatation of the cervix, because of achyranthes good water absorption and expansibility, so that the cervix Expansion and the uterus may have stimulating and contracting effect, shorten the operation time, is conducive to surgical operation, reduce