近年来剖宫产率急剧上升 ,术后预防性应用抗生素已成为许多医院的常规 ,但是发病率仍很高。感染多来源于产妇本身。有人认为术前、中、后应用都能降低感染率。卞度宏认为 ,术后给药已失去预防的意义 ,应予废止[1] 。目前提倡术前给予预防性应用抗生素 ,但这方面的临床报告不多 In recent years, the rate of cesarean section has risen sharply. Postoperative prophylactic antibiotics have become common practice in many hospitals, but the incidence is still high. Mostly from the maternal infection itself. Some people think that preoperative, middle and post application can reduce the infection rate. Bian degrees macro that postoperative administration has lost the significance of prevention, should be abolished [1]. Preoperative prophylaxis is currently recommended to give antibiotics, but few clinical reports in this regard