The saggier the skin, the more likely it is that fat will accumulate, and the chin and stomach are all areas prone to fat accumulation. If you want to lose weight, you must first control calorie intake and then increase energy consumption. The fat will be consumed slowly under the negative balance of the body. Some patients feel that the local skin is loose or have more local fat and expect to lose weight through surgical aids, i.e. liposuction, which needs to be considered in a comprehensive manner. Because many people may be left with scarring problems, including local tissue vascular nerve abnormalities. If there is an error in the surgery, it may cause local muscle stiffness, or affect local function. For weight loss, you need to control total energy and increase exercise. Avoid eating foods or drinks that are too high in energy. It is when the body is in negative balance that excess fat can be consumed. It is only then that the chin or tummy flesh will be slowly reduced. If surgical intervention is required, the full range of advantages and disadvantages, including adverse effects, need to be considered. Plastic surgery requires a very high level of clinical experience and delicate operation, and patients are advised to go to regular hospitals for aesthetic plastic surgery treatment.