Arm lift if performed by any experienced surgeon then the chances of rising complication is much less. However, just like any other surgical procedures, people may experience bruising, swelling, numbness but these are temporary and will go off with time. The scars involved in the procedure will more likely fade away over years or with the use of scar creams and lotions. There are very few patients who have reported instances of serious side effects from the procedure that included bleeding, infection, and formation of internal fluid, permanent numbness in the inner arm or even asymmetrical arms. But the chances of this complication is few.