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目的探讨初孕药物流产对再妊娠的影响。方法采用前瞻性调查方法对１２６例有药物流产史的初孕妇女及２６０例有人工流产史初孕妇女进行比较，随访妊娠分娩结局。结果因胎盘引起的并发症，药物流产组明显低于人工流产组（Ｐ＜００１）；产后出血发生率，药物流产组亦明显低于人工流产组（Ｐ＜００５）。结论初孕妇女药物流产后再次妊娠分娩因胎盘引起的并发症比人工流产后再次妊娠分娩者少，且有较大的安全性。
Objective To investigate the effect of first trimester medical abortion on pregnancy. Methods A prospective investigation of 126 pregnant women with history of medical abortion and 260 pregnant women with abortion history were followed up for the outcome of pregnancy and childbirth. Results Due to placenta-induced complication, the incidence rate of postpartum hemorrhage in the medical abortion group was significantly lower than that in the induced abortion group (P <001). The incidence of postpartum hemorrhage was also significantly lower in the abortion group than in the induced abortion group (P0.05). Conclusions The complications of placenta re-pregnancy after medical abortion in first trimester women are less than that of second trimester pregnancy after induced abortion, and have greater safety.