or six pack surgery is a procedure that improves the contour and appearance of the abdomen. Due to the six pack abs fitness trend, trimmed abs are especially popular and common among men. This surgery removes excess fat from the abdomen and sculpts and tightens the abdominal muscles. Cauterizing the abdomen reveals the muscles hidden beneath the layer of fat cells in the abdomen. Many men find it difficult to lose belly fat no matter how hard they work out in the gym and how much weight they lose.