Muscle repair and fascia tightening are the same thing.Fascia is the covering of muscle. Fascia is strong and will hold the suture, and when two pieces of fascia are pulled together, it is a very strong repair. Muscle, on the other hand, is easily torn apart by tight suture, therefore when you tighten the fascia in a tummy tuck, you repair the muscle separation (rectus diastasis).The midline between the right and left segments of abdominal muscle is known as the Linea Alba (white line). This white line is spread during pregnancy to allow the uterus to come forward prior to delivery. At times, the separated muscles repair themselves after the first pregnancy, rarely after the second, and almost never after the third pregnancy. This separation of muscles and a thin, stretched out Linea Alba between the two muscles allow the bowels to come forward. Therefore, the visual pooch after pregnancy is very often a stretched out white line and bowels pushing out between the two sides of the rectus muscle.When the fascia is brought together from side to side, this fascial tightening brings the muscles into a functional position, and therefore fascial tightening equals muscle repair.