How many fingers of diastasis recti can be measured by finger palpation, imaging tests and other methods to know how many fingers. 1. Finger palpation: the mother can go to the hospital to let the doctor carry out the examination, generally the mother lying on her back with both legs bent, exposing the abdomen, doing sit-ups with the head up and the rectus abdominis muscle contracted to start the movement, at this time the groove appeared in the abdomen that is the part of the rectus abdominis muscle separation, and measuring the width of the separation with the finger. 2. Imaging: The width of the diastasis recti can be measured directly by ultrasound. Mildly separated rectus abdominis can recover on its own. If the width of the separated rectus abdominis is more serious when checked on the 42nd day after delivery, rehabilitation training can be carried out appropriately. For severe rectus abdominis separation, surgery can be performed under the supervision of a doctor.