Facial asymmetry is a major problem that many aestheticians often encounter when seeking a standard face shape. Asymmetry of both soft and bone tissues can lead to facial asymmetry. The soft tissues include facial muscles and facial fat. In the case of muscular facial asymmetry, the bite muscle is usually involved and can be improved by Botox injections (commonly known as face slimming injections). Botulinum toxin bite injection is not permanent, generally an injection can maintain the effect of 3-6 months, so it is recommended that candidates inject once every 3-6 months. After 3-4 consecutive injections, the bite muscle is relatively thin and the rebound rate slows down, so you can choose the time of injection according to the rebound degree of the bite muscle, and at this time, you can generally inject once every 9-12 months. Since the speed of rebound of the bite muscle is related to the type of food and eating habits, the efficacy and course of treatment vary from person to person. In contrast, hemifacial atrophy, also known as Romberg syndrome, is an acquired condition in which the hemifacial soft tissue is thin and often diagnosed as scleroderma in dermatology, and can be improved by autologous fat injections. Multiple treatments may be required, with an interval of 3 months between each treatment, as the transplanted fat will show varying degrees of autologous absorption. Bony facial asymmetry, the main cause of facial asymmetry, can be caused by congenital dysplasia and diseases, such as: deviated jaw, hemifacial shortening, hemifacial atrophy; or it can be caused by acquired trauma and surgery. It can be done by osteotomy, osteotomy rearrangement, artificial material implantation, other plastic surgery, etc. The deviated jaw is often caused by abnormal development of the mandibular condyle and can also be caused by shortened hemifacial. Acquired trauma, such as surgical resection, birth forceps injury and damage to the condylar region during childhood development, systemic infection or otitis media resulting in temporomandibular joint ankylosis and mandibular developmental disorders, can also lead to a deviated jaw. The deviated jaw can be corrected by various surgical procedures depending on the degree of the disease and the patient’s requirements: 1. Mandibular artificial material implantation is suitable for patients with mild deviated jaw deformity who feel that the face is not full enough. The implant can be made of hydroxyapatite material (artificial bone), which can be customized according to the patient’s cranial 3D CT. 2.Chin osteotomy is suitable for patients with mild deviated jaw deformity, bilateral mandibular ascending branches and occlusion are basically in normal position, and the chin is still in deviated position. 3.Mandibular osteotomy, applicable to patients with mild deviated jaw deformity, feeling that the mandible is too big. 4.Orthognathic surgery, applicable to moderate to severe deviated jaw deformity. This procedure requires orthodontic and orthognathic surgery sequence treatment. If the patient also has more serious deviation of the occlusal plane, it is necessary to perform maxillary Le-Fort I surgery to correct the occlusal plane at the same time when orthognathic surgery is performed. The procedure is relatively long, but the efficacy is precise and can significantly improve the moderate to severe deviated jaw deformity. 5. For some craniomandibular dysplasia in minors, placement of extensions can also be considered.