目的:探讨剖宫产术中子宫切口撕裂伤发生的相关因素以便采取有针对性的预防措施。方法:调查、收集2012年6月~2013年6月住院实施剖宫产分娩的孕妇病例资料,以出现子宫切口撕裂伤的孕妇为损伤组,随机选取未出现手术损伤的孕妇为对照组,运用χ2检验和Logistic回归统计分析方法对相关因素进行分析。结果:与子宫切口撕裂伤相关的因素有胎位、胎头枕位、宫口开大情况及胎儿体重,与是否有盆腔手术史、孕妇年龄、先露高低、产程时间及麻醉效果则无统计学意义(P>0.05)。枕前位子宫切口撕裂伤发生率最低,巨大儿更容易导致子宫切口撕伤。结论:产前控制胎儿体重、产时及时纠正胎位不正及胎头枕位、减少第二产程剖宫产可以减少剖宫产术子宫切口撕裂伤的发生。 Objective: To explore the related factors of uterine incision laceration in cesarean section in order to take targeted preventive measures. Methods: The data of pregnant women who were hospitalized for cesarean delivery during June 2012 to June 2013 were collected. The pregnant women with uterine incision laceration were selected as the injury group. The pregnant women without surgical injury were randomly selected as the control group, The χ2 test and logistic regression analysis were used to analyze the related factors. Results: The factors associated with laceration of the uterine incision were fetal position, fetal head and occipital region, open cervix and fetus weight. There were no statistics on the history of pelvic surgery, the age of pregnant women, the level of first exposure, the duration of labor and the anesthetic effect Significance (P> 0.05). Occipital anterior uterine incision laceration incidence of the lowest, giant children more easily lead to uterine incision tear. Conclusion: Prenatal control of fetal weight, birth and timely correction of fetal position and fetal head pillow, reduce the second stage of cesarean section can reduce the incidence of cesarean section incision laceration.