Hello, if it is obvious skin relaxation, simple exercise or external skin care products can't improve it, and surgery is often needed to remove excess skin. This kind of operation belongs to cosmetic surgery, but if it is not scar constitution, the effect is still good. If it is slight skin relaxation, massage and some drugs to increase skin elasticity and promote collagen growth may help to recover to some extent. Exercise can increase the density of abdominal muscles and subcutaneous tissue, so it is also good for slight skin relaxation.