High weight loss causes the skin's connective tissue support structure, the muscles and skin of the breasts, back, armpits, trunk to weaken and become saggy. Your body weight is now ideal, but your skin and tissues have not been able to adapt sufficiently to this change and you may feel as if you are wearing several sizes too many 'clothes'. During weight loss body contouring, a spectacular improvement in body contour can be achieved by removing skin and residual fat and tightening the tissues.