前置胎盘是妊娠期的严重并发症 ,病情凶险 ,处理得当与否将直接影响母婴预后。然而 ,近年文献相继报道在临床上由于剖宫产指征逐渐放宽 ,使前置胎盘过早终止妊娠 ,增加了早产儿的出生率 ,影响围生儿的预后[1] 。为研究前置胎盘适宜终止妊娠时机 ,对 5 5例前置胎盘以剖宫产结束 Placenta previa is a serious complication of pregnancy, dangerous condition, properly handled or not will directly affect the prognosis of mother and child. However, in recent years, the literature has been reported in clinical cesarean section gradually reduce the indications, the premature termination of placenta previa, increased the birth rate of preterm children, affecting the prognosis of perinatal children [1]. In order to study the timing of placenta previa termination of pregnancy, 57 cases of placenta previa end of cesarean section