为了探索一种应用方便、经济有效的剖宫产预防性抗生素用药方案 ,对 136例足月妊娠需剖宫产结束分娩的孕妇 ,随机分为术前用药 (实验组 )、术后用药 (对照组 )两组 ,观察术后体温、感染、腹部伤口愈合、子宫复旧等指标 ,比较两组抗生素应用的临床效果。结果 :术后体温、感染及伤口愈合两组无统计学差异 ,子宫复旧实验组较对照组好 ,有统计学意义。结论 :剖宫产预防性抗生素应用中术前用药比术后用药具有更多优势 In order to explore a convenient and cost-effective cesarean section prophylactic antibiotic regimen, 136 pregnant women who needed cesarean delivery after term pregnancy were randomly divided into preoperative medication (experimental group) and postoperative medication (control Group), the postoperative body temperature, infection, abdominal wound healing, uterine involution and other indicators were observed, and the clinical effects of two groups of antibiotics were compared. Results: Postoperative body temperature, infection and wound healing were not statistically different between the two groups, uterine involution group than the control group, with statistical significance. Conclusions: Preoperative prophylaxis with cesarean section has more advantages than postoperative medication