It is recommended to take appropriate treatment measures according to the causes of double chin. 1, genetic factors: double chin is a dominant gene inheritance, if both parents or one of them have a very thin but double chin, then the child may also appear the situation, for this group of people can be local injection of Botox, so that For these people, Botox can be injected locally to make the muscle tissue in the chin area contract, thus improving the symptoms of double chin; 2. Local fat accumulation: mainly due to long-term consumption of high-fat food, or taking glucocorticoid drugs, causing full-moon face, resulting in fat accumulation in the chin area, resulting in a very thin but double chin situation. It is recommended to follow medical advice to give local liposuction surgery to reduce local fat. At the same time, adjust the diet to a light, easy-to-digest diet and stop taking glucocorticoid drugs to prevent local fat accumulation again; 3, excessive skin relaxation: mainly due to old age, long-term low head activities, etc., resulting in significant skin relaxation at the jawline, resulting in a very thin but double chin situation. It is recommended to reduce the number of low head, but also need to improve bad habits, while following medical advice to inject Botox, or take facelift surgery to restore facial skin tightness. 4, the chin muscle is located at the bottom of the mouth, some people are used to relax the lower lip and mouth, the muscle is in a long-term relaxed state, under the action of gravity, downward collapse, especially with the increase in age, local fat accumulation, is the appearance of a double chin The performance of. The usual life to consciously exercise the bottom of the mouth muscles and broad neck muscles.