A tummy tuck can remove loose, excess skin and fat, and tighten weak fascia. A tummy tuck can also remove stretch marks and excess skin in the lower abdomen below the bellybutton. However, a tummy tuck won't correct stretch marks outside of this area. If you've previously had a C-section, your plastic surgeon might be able to incorporate your existing C-section scar into your tummy tuck scar.
A tummy tuck can also be done in combination with other body contouring cosmetic procedures, such as breast surgery. If you've had fat removed from your abdomen (liposuction), you may decide to have a tummy tuck because liposuction removes tissue just under the skin and fat but not any excess skin.