The most common causes of liposuction to lose weight are skin relaxation, hematoma and local wound infection. As for safety, surgery is definitely risky. How much you lose depends on how much fat you suck. Generally, it depends on the patient's own situation, not the more you smoke, the better. "Especially people with a large amount of liposuction, don't be eager for quick success. Fractional liposuction can also achieve a good body shaping effect.