First, developmental facial deformity. During the development period, one side of the face appears developmental retardation, and it does not show facial asymmetry until adulthood, that is, one side of the face is fuller than the other. It is divided into physiological facial asymmetry, which is often not very serious, usually does not need plastic surgery, and has certain heredity, which is common in many normal people; Some congenital diseases, such as hemifacial short syndrome, will lead to severe hypoplasia of one side of the face, accompanied by auricle deformity, and a series of plastic surgery must be started around 6 years old; Childhood facial trauma, isotope therapy of facial hemangioma, bad chewing habits, tooth deformity, etc. will all lead to unilateral facial development disorder, which will show facial asymmetry in adulthood. Second, facial asymmetry caused by trauma. Accidental injuries caused by playing basketball or other activities. However, severe trauma may lead to necrosis or scarring of subcutaneous adipose tissue of facial skin, facial bone fracture can not be reduced and treated, and facial asymmetry will appear after healing. With the development of transportation industry, the disability caused by this kind of reasons has an increasing trend. Third, the deformity after surgical resection of facial tumors. If the tumor is not treated with plastic surgery at the same time, various tissue defects or organ displacement will occur on the face, resulting in facial deformity. After the above introduction, no matter what causes your facial asymmetry, you can solve it through facial asymmetry plastic surgery.