The best time to repair the rectus abdominis muscle in women after childbirth is within 6-24 weeks after delivery. As the uterus increases in size during pregnancy, the rectus abdominis muscle is often separated, and it is important to resume exercise as soon as possible after the puerperium to promote rectus abdominis repair. The best time to repair the rectus abdominis muscle is about 6 weeks after delivery and lasts until about 24 weeks after delivery, because the uterus recovers best during the puerperium and should rest more and should not be overly exercised. If the rectus abdominis muscle has not fully recovered within six months after delivery, the degree of recovery will be relatively small in the future. The postpartum period can be regulated by diet control and combined with comprehensive exercise such as sit-ups, yoga and running to repair the rectus abdominis muscle. If the separation of the rectus abdominis muscle is obvious after delivery, you can use a belly band or use physical therapy to make the rectus abdominis muscle recover as soon as possible after 6 weeks or so.