前置胎盘是妊娠晚期出血的主要原因之一,是妊娠期的严重并发症,处理不当能危及母儿生命安全。其处理原则是止血补血。应根据病人出血量、孕周、胎儿是否存活、前置胎盘类型等选择处理方法。对于出血较多、完全性前置胎盘必须采取剖宫产,迅速止血,是处理前置胎盘最安全最有效的方法。而对于妊娠37周以前或胎儿体重估计<2300g,阴道出血不多,患者一般情况好,胎儿存活者,在保证孕妇安全的前提下保胎,延长胎龄,促使胎儿达到或接近足月,从而提高围产儿的存活率,应 Placenta previa is one of the main causes of bleeding in the third trimester of pregnancy is a serious complication of pregnancy, improper handling can endanger the safety of mother and child. The treatment principle is to stop bleeding and blood. Should be based on patient bleeding, gestational age, fetal survival, placenta previa and other treatment options. For more bleeding, complete placenta previa must take cesarean section, rapid hemostasis, is the most secure and effective treatment of placenta previa. For 37 weeks before pregnancy or fetal weight estimated <2300g, vaginal bleeding is small, the patient is generally good, the fetus survivors, to ensure the safety of pregnant women under the premise of miscarriage, prolongation of gestational age to promote the fetus to reach or near full-time, and thus Improve perinatal survival rate should be