Objective  To retrospectively analyze the related factors of infection after cesarean section.

  Methods  Totally 347 medical records of women with cesarean section were randomly collected. Taking postoperative infection as the outcome index, the independent high- risk factors of infection after cesarean section were analyzed by Logistic single factor and multiple factors analysis, and the effects of different therapeutic regimens (including dosage varieties, drug use time, drug use timing) on infection after cesarean section were analyzed.

  Results  Vaginal trial delivery, large amount of intra- operative bleeding, large amount of postpartum bleeding and pelvic adhesion were the independent high- risk factors for postoperative infection (P < 0.05). The infection rate of the up- graded medication group was higher than that of routine medication group (P < 0.05). There was no significant difference in infection after operation between drug use time less than or equal to 24 h group and over 24 h group, and drug use timing after umbilical cord amputation group and before operation group (P>0.05).

  Conclusion  High- risk factors such as intraoperative bleeding, vaginal trial delivery, pelvic adhesions and prophylactic antibiotics use are associated with infection after cesarean section.