胎盘滞留是产后大失血的主要原因之一凡胎儿娩出后半小时胎盘尚未娩出者统称为胎盘滞留根据子宫壁及胎盘的关系可分为胎盘全部剥离滞留胎盘部分残留胎盘嵌顿胎盘粘连和胎盘植入胎儿娩出后10 分钟之内胎盘剥离大于10 分钟胎盘尚未娩出者应检查子宫底高度膀胱充盈压迫耻骨上方脐 Placental retention is one of the major causes of postpartum hemorrhage Where the fetus is not half an hour after the delivery of the placenta are collectively referred to as placental retention according to the relationship between the uterine wall and the placenta can be divided into full placental detachment part of the placenta residual placenta accreta placenta accreta and placenta accreta Into the fetus within 10 minutes after delivery of the placenta stripping more than 10 minutes have not yet been delivered to the placenta should check the bottom of the uterus bladder filling oppression over the suprapubic umbilical