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正常分娩一般出血约50～200毫升。胎儿娩出后24小时之内,凡出血量达400毫升或更多者称为产后出血。分娩24小时以后,在产褥期内发生大量出血者,称为产后晚期出血。产后出血是产科严重的并发症之一,可因子宫收缩乏力、胎盘滞留、产道损伤、凝血功能障碍等引起,病情发展迅速,稍微疏忽,即可出现休克,抢救不及时,可引起死亡。绝大多数产后出血是可以预防的,一旦发生出血,必须镇静、果断,找出原因,及时处
Normal delivery of about 50 to 200 ml of general bleeding. Within 24 hours after delivery of the fetus, where the amount of bleeding 400 ml or more known as postpartum hemorrhage. 24 hours after delivery, a large number of bleeding occurred in the puerperal, known as late postpartum hemorrhage. Postpartum hemorrhage is one of the serious complications of obstetrics, uterine contraction may be due to fatigue, placental retention, birth canal injury, coagulation disorders caused by the rapid progression of the disease, a slight negligence, shock can occur, rescue not timely, can cause death. The vast majority of postpartum hemorrhage can be prevented, in the event of bleeding, must be calm, decisive, find out the reasons, in a timely manner