An upper arm lift, or brachioplasty, reshapes the upper arm to tighten loose skin and remove fat that often creates a “bat wing” appearance under the arm. Removing the excess skin caused by weight loss or natural aging can tighten loose skin that extends from the underarm area to the elbow; liposuction is sometimes used in combination to achieve the best results. Every year, thousands of people undergo successful upper-arm-lift surgery and are pleased with the results.