随着计划生育工作的开展,避孕失败后要求终止妊娠者,已成为妇产科日常主要工作之一。以往实施人工流产,对受术者可造成一定的创伤,即使是全麻下施术,也可能引起许多术后并发症。药物流产具有痛苦小,避免人流引起的机械性损伤,减少并发症,对于反复人流刮宫的疤痕性子宫,及其他不 With the development of family planning work, the termination of pregnancy after the failure of contraception has become one of the major daily tasks of obstetrics and gynecology. In the past the implementation of induced abortion, the subject can cause some trauma, even under general anesthesia, surgery may also cause many postoperative complications. Medical abortion with painful, to avoid the flow of people caused by mechanical injury, reduce complications, repeated abortion curettage of the uterus, and others do not