The best time for rectus abdominis repair is from 6 weeks to 6 months postpartum. There are 3 periods of postpartum recovery, namely the golden period, the ideal recovery period and the end of recovery, which are 6 weeks to 6 months postpartum, 6 months to 1.5 years postpartum and 1.5 years to 3 years postpartum, respectively. The separation of the rectus abdominis muscle is caused by the rupture of the tendons of the rectus abdominis muscle due to the enlargement of the uterus during pregnancy, so it can occur in both normal and cesarean deliveries, and is more likely to occur in pregnant women of advanced age or with multiple births, large fetuses, multiple pregnancies, and excessive amniotic fluid. When the separation of the rectus abdominis muscle is greater than 3 cm, surgical treatment is required and cannot be relied on physical exercise to obtain repair, while when the separation of the rectus abdominis muscle is less than 3 cm, it can be repaired by physical exercise, which should focus on abdominal muscle exercise, avoiding the use of lying, knee and chest position, or wearing a lap band, pelvic belt, etc., to promote the growth of the rectus abdominis muscle and repair the defect of the rectus abdominis muscle gap. Because the new birth is still in the breastfeeding, uterine recovery period, the maternal organs and systems have not returned to prenatal, should pay attention to the amount of exercise to moderate, do not over pursue the rectus abdominis muscle repair and overwork, resulting in the malodextrous dew is not clean.