Association of cesarean scar defect with abnormal uterine bleeding: The results of a prospective study.

Objective: To evaluate the relationship between cesarean scar defect and abnormal uterine bleeding at one year after cesarean section (CS).

Study Design: A prospective observational cohort study was conducted in 401 women who delivered by CS between January 2016 and January 2017. Women were screened for isthmocele with sonohysterography six months after CS and followed by electronic questionnaires at 12, 13 and 14 months after CS.