米非司酮抗早孕以停止49天内效果较好,而子宫位置与流产成功率的关系如何,本人做了临床统计分析。1 临床资料将1997年1月至2000年10月,停药≤49天,经 B 超证实为宫内早孕,自愿行药物流产的287例作为研究对象。本组孕妇18～40岁,平均29岁。初孕妇196例,经产孕妇91例,用药对象月经周期基本正常。均符合药物流产适应症,无明显禁忌症。2 用药方法 Mifepristone early pregnancy to stop 49 days is better, and uterine position and the success rate of abortion how, I made a clinical statistical analysis. 1 clinical data from January 1997 to October 2000, discontinuation of ≤ 49 days, confirmed by intrauterine pregnancy by B ultrasound, voluntary medical abortion 287 cases as the research object. The group of pregnant women 18 to 40 years old, average 29 years old. The first 196 pregnant women, pregnant women by the production of 91 cases, the object of menstrual cycle was normal. Are in line with medical abortion indications, no obvious contraindications. 2 medication method