目的分析产后出血发生原因,总结相关性影响因素,探讨降低产后出血率的治疗和预防措施。方法对2014年1月-2015年1月开原市妇幼保健院收治的2 720例分娩孕产妇中发生产后出血的68例患者的临床资料进行回顾性分析。结果产后出血发生率为2.5%。造成的主要病因为宫缩乏力及胎盘因素。其主要的相关性因素有分娩方式、高龄初产及其他等。结论产后出血由多因素造成,其主要因素是宫缩乏力,合理评估和处理危险因素以及认真做好围产期预防,能有效控制产后出血的发生。 Objective To analyze the causes of postpartum hemorrhage, summarize the related factors, and to explore the treatment and preventive measures to reduce the postpartum hemorrhage rate. Methods The clinical data of 68 cases of postpartum hemorrhage among 2 720 pregnant women who were delivered during the period from January 2014 to January 2015 in MCH were analyzed retrospectively. Results The incidence of postpartum hemorrhage was 2.5%. The main causes of uterine atony and placental factors. The main relevant factors are the mode of delivery, senior primiparous and others. Conclusions Postpartum hemorrhage is caused by multiple factors. The main factors are uterine atony, reasonable assessment and treatment of risk factors, serious perinatal prevention and postpartum hemorrhage.