Whether or not a diastasis recti can heal on its own depends on the cause of the diastasis recti and the severity of the diastasis recti. If the separation is mild due to pregnancy, some of it may heal on its own. If the separation is severe or if it is caused by trauma, there is less chance of it healing on its own, and rehabilitation should be actively pursued. Rectus abdominis muscle separation is the result of abdominal muscle weakness and elastic fiber rupture, leading to abdominal wall laxity and protrusion of abdominal contents, similar to an umbilical hernia, which will have an impact on health and requires active treatment. Mild diastasis recti is caused by the gradual increase of the uterus during pregnancy and the overstretching of the rectus abdominis muscle, and some of these cases may heal spontaneously in the first 6 months after delivery, while traumatic diastasis recti requires active treatment. For mild and moderate rectus abdominis separation, exercise therapy or electrical stimulation therapy can also be chosen. Abdominal breathing pattern training, end-of-maneuver therapy, abdominal and pelvic floor muscle exercises can be performed. Neuromuscular electrical stimulation therapy can also be performed, which engages the muscle fibers in muscle contraction and strengthens the muscles. In case of severe diastasis recti abdominis separation surgery is required which includes abdominoplasty, abdominal fascia folding and diastasis recti separation repair. If rectus abdominis muscle separation is diagnosed, it is recommended to actively follow the doctor’s instructions for review or treatment to minimize the adverse effects of the disease.