The best time for postpartum pelvic correction is within 42 days after delivery. During pregnancy, due to hormones, the ligaments are loose and the pelvis becomes bigger, plus the uterus enlarges and presses the pelvic floor tissues, which are also prone to be damaged during delivery. If it is not repaired in time, symptoms such as urinary incontinence, constipation and low back pain are prone to occur after delivery, and the side effects will be even more as you get older. Because the pubic symphysis is mostly separated during normal labor and delivery, corrective belts can be beneficial for pelvic recovery. And cesarean section women is best after the incision healing, is about 10 days after delivery to start using, wear about 8 hours a day, night sleep time to remove, to prevent due to poor local blood circulation, other abnormalities. It is best to wear the orthodontic band for 2-3 months for a good effect.