A 25-year-old woman suffered a vesicouterine fistula following cesarean section. Cystoscopic fulguration of the fistula was attempted, resulting in disappearance of incontinence. Two months later, incontinence recurred and open surgical repair was performed transabdominally. After resection and closure of the fistula with the help of peritoneal flap interposition, the patient became free from incontinence.