A tummy tuck — also known as abdominoplasty — is a cosmetic surgical procedure to improve the shape and appearance of the abdomen. During a tummy tuck, excess skin and fat are removed from the abdomen. Connective tissue in the abdomen (fascia) usually is tightened with sutures as well. The remaining skin is then repositioned to create a more toned look. You might choose to have a tummy tuck if you have excess fat or skin around the area of your bellybutton or a weak lower abdominal wall. A tummy tuck can also boost your body image.