产后出血(指产后24h内出血大于等于500ml),是产科出血最常见而严重的一种并发症,因为可以在短时间内,大量失血很快出现出血性休克,如未及时抢救可致死亡,有的因休克时间过长,即使挽救了生命但因脑下垂体缺血坏死,发生垂体前叶的严重后遗症,有的因失血使身体抵抗力降低,成为产褥感染的诱因,产后出血绝大多数可以避免。尽量降低发病率,减少其出血量, Postpartum hemorrhage (bleeding within 24h after giving birth is greater than or equal to 500ml) is the commonest and most serious complication of obstetric hemorrhage because hemorrhagic shock can occur rapidly in a short period of time with massive blood loss. If hemorrhage is not rescued in time, Of the shock time is too long, even if the saved lives but because of pituitary necrosis, severe sequelae occurred in the anterior pituitary, and some because of blood loss to reduce the body resistance, a puerperal infection incentives, the vast majority of postpartum hemorrhage Can be avoided. Try to reduce the incidence and reduce the amount of bleeding,