More meat on one side of the face and less meat on the other side of the face may be caused by chewing with one side of the teeth for a long time or congenital underdevelopment. Mild asymmetry can be corrected by changing bad chewing habits, while severe asymmetry requires cosmetic surgery. If there is one side of the teeth caries bad teeth, will be used to use the other side of the healthy teeth to chew things, long-term use of one side of the teeth to chew food, under the action of the bite force, the jawbone will become wider, the corresponding muscle fibers will become thicker than the opposite side, looks asymmetric left and right. Due to dental problems caused by facial asymmetry, you can go to the stomatology department to repair caries in time and correct the habit of unilateral chewing, which can correct the left and right facial muscle unevenness. Some people have congenital abnormalities of maxillofacial development, serious left and right facial asymmetry, one side has more meat and one side has less meat, this situation can only be corrected by cosmetic surgery, it is recommended to go to a regular plastic surgery clinic or hospital for orthopedic surgery.