Does saggy, droopy skin on your arm persist no matter how much you exercise or diet? An arm lift, or brachioplasty, procedure involves removing the fatty tissue over the upper portion of the arm while lifting and firming it. However, a scar from the armpit to the elbow will remain afterward. Over time, the appearance of the scar will reduce but will not completely diminish. Combining other body contouring procedures with a brachioplasty can produce optimal results.