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正常分娩失血量一般为150～300毫升,我国50年代以胎儿娩出后24小时出血量达500毫升为产后出血,60年代起以400毫升作为产后出血诊断标准.国际上仍以失血量500毫升为标准.本病常发生在分娩第三期.由于失血,身体抵抗力降低,常为产褥感染的诱因,严重失血休克未及时抢救,则危及产妇生命.有的虽挽救了生命,但因垂体缺血坏死并发垂体前叶功能低落症,严重影响妇女健康,因此积极预防和减少产后出血以及抢救
Normal delivery of blood loss is generally 150 to 300 ml, 50 years of our country to the fetus 24 hours after delivery bleeding 500 ml for postpartum hemorrhage, since the 60s to 400 ml as a postpartum hemorrhage diagnostic criteria.Of international blood loss is still 500 ml Standard .This disease often occurs in the third issue of childbirth.Because of blood loss, reduce the body’s resistance, often as a cause of puerperal infection, severe hemorrhagic shock is not timely rescue, endangering the lives of mothers.Although saved the lives, but due to pituitary Ischemic necrosis with hypopituitarism in anterior pituitary, serious impact on women’s health, and therefore actively prevent and reduce postpartum hemorrhage and rescue