Results:
The key factors determining optimal healing are the timing of cesarean section; menstrual cycle; CSD length, width, depth, and the myometrial layer thickness of the lower uterine segment. With the prediction model, scores are given to each parameter according to the statistics. Total scores range from 0 to 25 points with a cutoff point of 16.5. Predicted that transvaginal repair achieves optimal healing when a score greater than 16.5 points. Uterine position and preoperative TRM are the key factors affecting postoperative TRM. The width of the CSD and the thickness of the lower uterine segment are the key factors affecting postmenstrual abnormal uterine bleeding (P<0.01).