Facial asymmetry correction is a plastic surgery procedure for facial asymmetry. According to different symptoms and the degree of deformity, the corresponding bone tissues can be cut open, and after the bone block is cut off and free, it can be reassembled according to the predetermined position, and some of them even need to implant the bones in other parts of the body to rebuild the normal bone shape of the craniofacial scaffolding, so as to achieve the purpose of correcting the facial asymmetry. Any surgery has certain surgical risks, and the risks of facial asymmetry correction surgery are as follows: 1, postoperative infection: if the surgical operation is not strict or postoperative care is not proper, it will lead to facial swelling, redness and other infections; 2, hemorrhage or hematoma: not paying attention to the protection of the surrounding soft tissues in the process of operation, damage to blood vessels; intraoperative hemostasis is not complete; postoperative vascular ligature line detachment; postoperative compression bandage is not secure or too much movement after operation; 3, bilateral asymmetry correction surgery: it will cause the facial asymmetry of the face to be corrected. Bilateral asymmetry: caused by preoperative marking or surgical operation errors, the operation should be strictly in accordance with the preoperative design, if one side of the operation error deviates from the predetermined drawing line, the opposite side should be adjusted accordingly; 4. Facial nerve (trigeminal and facial nerves) injury: it can be caused by the violence of the surgical operation, which is followed by facial sensory abnormality and activity abnormality. Therefore, the surgeon should operate carefully and cautiously, pay attention to the level and direction of nerve travel and use surgical magnifying glass to avoid damage to the facial nerve. Facial asymmetry correction surgery belongs to the Ministry of Health, medical cosmetic grading in the fourth level of the project, surgical risk is relatively large, so before the treatment, you should be careful to choose the third level of plastic surgery hospitals or third level of general hospital qualification of the organization.