After substantial weight loss, weight gain or simply from the effects of aging, skin on the upper arms can become inelastic, loose and flabby. Arm lifts, also known as brachioplasty, remove that excess skin and fat. Patients who have significant amounts of fat may want to consider combining the procedure with liposuction. Incisions are usually hidden along the inner arm. This allows patients to wear sleeveless clothing as scars are out of view.