米非司酮用于促宫颈成熟的临床效果好 ,对母体的安全性较高。但是 ,用药对胎盘的结构有一定的影响 ,对胎盘合成的激素和调节因子亦可能有影响。目前 ,尚未见对胎儿、新生儿有影响的报道。许多专家指出 :在尚无统一结论的前提下 ,对米非司酮用于晚期妊娠引产应持谨慎态度。 Mifepristone for cervical ripening clinical effect is good, the higher the safety of the mother. However, the administration of the placenta has a certain impact on the structure of the placenta synthesis hormones and regulatory factors may also be affected. At present, there have been no reports of fetuses and newborns. Many experts pointed out: There is no unanimous conclusion on the premise of mifepristone for late pregnancy induction should be cautious.