Abstract Objective: To investigate the factors of uterine scar diverticulum formation of women with cesarean section. Methods: The clinical data of 103 women with cesarean section who had been diagnosed as uterine scar diverticulum formation by ultrasonography and 100 women with cesarean section who had no uterine scar diverticulum formation by ultrasonography from January 1 2012 to December 31 2016 were collected and analyzed retrospectively. Results: Multivariate regression analysis showed that time of lochia after cesarean section (OR=16.230,95% CI 3.93666.929), rate of anemia (level of hemoglobin <100g/L) after operation (OR=7.071,95% CI2.651-18.862), rate of postoperative incision infection (OR=6.441,95% CI 1.316-31.527), rate of postoperative incision hematoma formation (OR=22.084, 95% CI 1.517-321.413), and rate of postoperative neutrophils increased (P<0.01) were independent risk factors for uterine scar diverticulum formation. Conclusion: Postoperative anemia, incision infection, and incision hematoma formation, choice time of cesarean section, and lochia prolong after cesarean section are high risk factors for uterine scar diverticulum formation, so they should be paid more attention to.
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