Jaw surgery is a plastic surgery procedure, which is a method of osteotomy to improve the shape of the face, and may result in bleeding, facial asymmetry, fracture, anesthesia accident, infection, etc. The probability and severity of these cases are usually related to the hospital equipment, sterilization situation, operation, etc. Therefore, if the surgery is performed in a regular hospital by a skilled surgeon, the risk of various complications or accidents can usually be reduced and is less. However, if in an irregular hospital, the risk is usually higher due to the limitation of equipment, doctor’s level and other factors. Common risks mainly include: 1. Bleeding: It is one of the common risks of surgery, usually caused by the surgeon’s injury to blood vessels during operation, which may form a hematoma, and the swelling will generally go down in 1-2 weeks after surgery, and such risks are not significant. However, if a larger artery such as the facial artery is damaged during surgery, it is relatively difficult to stop bleeding and may even cause choking and coughing, which is a relatively large risk. 2. Facial asymmetry: the field of view during surgery is small, and if the osteotomy is poor, asymmetry between the two sides of the face will easily occur after the swelling subsides, and there is a risk of secondary repair. The temporomandibular joint disorder may occur after surgery, causing the mouth angle to be skewed when opening the mouth and causing facial asymmetry, but most of them can be recovered and the risk is not significant. The stretching of muscle tissues during surgery is also likely to cause damage to nerves and the occurrence of mouth-eye distortion, resulting in facial deformation and asymmetry, which is risky; 3. Mandibular fracture: mandibular surgery can cause the risk of fracture at the osteotomy, and patients can show pain, swelling, and deformation of the mandibular area in the operated area. Patients are advised to choose regular hospitals with perfect medical equipment for surgery. Even if such cases occur, doctors will promptly change the surgical plan and fix the fracture with a titanium plate at the fracture, and since the fracture can generally heal completely, the surgical risk is not significant; 4. Anesthesia accident: mandibular surgery needs to be performed under general anesthesia. General anesthesia means general anesthesia, which mainly applies anesthetic to suppress the patient’s central nervous system, so that the patient is in a state of loss of consciousness and relaxation of the skeletal muscles of the whole body, thus facilitating the doctor’s surgical operation. However, some patients may be allergic to anesthetics, or if the patients themselves have chronic diseases such as hypertension, coronary heart disease, diabetes, etc., it will increase the risk of anesthesia accidents, which may lead to coma or even death in serious cases, with a higher risk; 5. Postoperative infection: due to incomplete oral cleaning before mandibular surgery, failure to perform strict aseptic operation during surgery, and postoperative hematoma secondary to infection. Once the symptoms of infection, such as flowing pus and fever that does not subside, antibiotic treatment needs to be given immediately, and incision and drainage are required if necessary. If not treated properly, the patient may be left with a scar after surgery, affecting the appearance, and the risk of this happening is high. Therefore, if you need to do jaw surgery, it is recommended to go to a regular hospital for treatment, because regular hospitals have strict surgical procedures and sterilization regulations, the equipment is generally more perfect, and the level of doctors is generally guaranteed, which can effectively reduce the risk of surgery, most of which will not occur in serious cases.