目的总结静脉注射缩宫素预防产后出血的效果。方法320例足月妊娠无妊娠合并症或妊娠并发症,近期内未用过前列腺制剂的自然分娩者,随机分为静脉注射缩宫素组及肌肉注射缩宫素组各160例,对第三产程时间和产后2 h出血量进行比较。结果静脉注射缩宫素组第三产程时间明显缩短,产后2 h出血量也明显减少。结论静脉注射缩宫素是一种防治产后出血简易而高效的方法,临床上值得推广应用。 Objective To summarize the effect of intravenous oxytocin in preventing postpartum hemorrhage. Methods 320 cases of term pregnancy without pregnancy complications or complications of pregnancy, the recent free prostate preparation of natural delivery were randomly divided into intravenous oxytocin group and intramuscular oxytocin group of 160 cases of the third Labor hours and 2 h postpartum hemorrhage were compared. Results The time of the third stage of labor in the oxytocin group was significantly shortened, and the amount of bleeding at 2 h postpartum was also significantly reduced. Conclusion Intravenous injection of oxytocin is a simple and effective method of prevention and treatment of postpartum hemorrhage. It is worth popularizing and applying clinically.