Abdominal breathing is effective in repairing the rectus abdominis muscle. Abdominal breathing means that when the lips are closed, inhaling through the nose makes the abdomen bulge, and then slowly exhaling, the abdomen retracts. This cycle of regular breathing exercises, making the abdomen deep and slow ups and downs, so as to achieve the effect of tightening the internal abdominal muscles, but the effect is limited. The need to repair the rectus abdominis muscle is usually postpartum women, because the uterus grows in late pregnancy, the abdominal skin tension increases and the elasticity decreases, resulting in the separation of the rectus abdominis muscle. The treatment of postpartum rectus abdominis separation cannot rely on abdominal breathing exercises alone to improve the rectus abdominis muscle, and cannot achieve the effect of complete repair. Therefore, physical therapy and other independent training programs are also needed. Consultation with your doctor is recommended.