产后出血是威胁产妇生命安全的重要原因之一,居我国目前孕产妇死亡原因的首位,其发生率占分娩总数的3%,产后出血的预后随失血量、失血速度及产妇体质不同而异,若短时间内大量失血可迅速发生失血性休克,严重危及产妇生命。产后出血的发生,以子宫收缩乏力最常见,本文对应用米索前 Postpartum hemorrhage is one of the most important causes of threatening the life safety of maternal. It ranks first in the cause of maternal mortality in China. The incidence of postpartum hemorrhage accounts for 3% of the total number of deliveries. The prognosis of postpartum hemorrhage varies with the blood loss, blood loss and maternal body, If a large number of blood loss in a short time hemorrhagic shock can occur rapidly, seriously endangering the lives of mothers. The incidence of postpartum hemorrhage to the most common uterine atony, this article on the application of misoprostol