选择 130例足月妊娠阴道分娩 ,非高危妊娠产妇在第三产程早期口服米索前列醇减少产后出血 ,并与肌注催产素 130例作对照 ,经临床观察效果显著。1　资料与方法1 1　临床资料　选自 1999年 8月～ 12月在我院自然分娩的产妇 2 6 0例 ,按分娩先后顺序及预先编制的 1∶1随机表将研究 Select 130 cases of full-term pregnancy vaginal delivery, non-high-risk pregnant women in the early stage of the third stage of oral administration of misoprostol to reduce postpartum hemorrhage and intramuscular injection of oxytocin as control in 130 cases, the clinical observation of significant results. 1 Materials and Methods 1 1 clinical data from August 1999 to December in our hospital natural childbirth 260 cases, according to the order of delivery and pre-prepared 1: 1 randomized study