产后出血是产科常见的严重并发症,是引起产妇死亡的首要原因。一九六○年国内产后出血发生率多在2～5%左右,一九七八年我国十三省市、自治区的统计为3.11%,由于妊娠时垂体前叶生理性肥大,失血后易发生病变,如休克。若休克时间长,即使生命得到挽救,但因垂体长时间缺血,以致坏死,可发生席汉氏综合症。由此,防治产后出血已引起妇产科工作者的高度重视。一、产后出血的诊断标准六十年代以后,我国是以胎儿娩出后至产后二十四小时内出血量≥400ml做为产后 Postpartum hemorrhage is a common serious obstetric complication, is the prime cause of maternal death. In 1960, the incidence of postpartum hemorrhage in China was mostly 2 ~ 5%. In 1978, the statistics of thirteen provinces, autonomous regions and municipalities in China were 3.11%. Because of the physiological hypertrophy in the anterior pituitary of pregnancy and the occurrence of blood loss after pregnancy, Lesions, such as shock. If the shock a long time, even if life is saved, but the pituitary for a long time due to ischemia, resulting in necrosis, Syndrome can occur. Thus, prevention and treatment of postpartum hemorrhage has caused gynecological workers to attach great importance. First, the diagnostic criteria for postpartum hemorrhage After the 1960s, China is based on the fetus after delivery to within 24 hours after delivery, bleeding ≥ 400ml as postpartum