Arm liposuction and gastric bypass can sometimes be performed at the same time, but it depends on a few important factors, including your overall health, surgical risk, and the recommendations of your bariatric and plastic surgeons. Gastric bypass is a significant procedure that typically takes priority because of the long-term impact it can have on your weight and health. Combining it with arm liposuction could increase the overall surgical time and recovery period, which might raise the risk of complications such as infection, blood clots, or delayed healing. Surgeons are often cautious about combining major surgeries for this reason. In many cases, it’s advisable to schedule the procedures separately. Gastric bypass can help you lose a significant amount of weight, and this might naturally reduce the volume of fat in your arms. After you've achieved weight stability, liposuction or other contouring procedures could then be considered to address any remaining excess fat or skin. This staged approach often leads to better results and a smoother recovery process.