The jaw angle surgery is being carried out more and more, and there is a lot of publicity on the Internet to do the jaw angle surgery with local anesthesia, so is local anesthesia really as safe and reliable as advertised? First of all, from the jaw angle surgery, the surgery is currently taken intra-oral incision, as we all know, bone surgery is traumatic, so there will certainly be bleeding. At the same time, in order to maintain a better view during surgery, it is inevitable to rinse. This will produce a large amount of fluid flow into the mouth. If local anesthesia is used, then the patient needs to cooperate and swallow the liquid. If the patient is nervous or afraid of blood and cannot cooperate, it is likely to lead to choking and coughing, and the serious ones are likely to inhale the liquid into the lungs by mistake, causing adverse consequences such as asphyxia, and by that time it will be too late to intubate the trachea. A lack of oxygen to the brain for more than five minutes is likely to cause permanent brain death. Furthermore, with the continuous development of anesthetic drugs, general anesthesia has become a very safe form of anesthesia after preoperative risk assessment. And there is very little damage to the body as well as to the nerves. During general anesthesia, the patient is directly intubated with a tracheal tube to ensure that the airway is open during the entire procedure and no hypoxia may occur. Therefore, the local anesthesia surgery promoted online should be considered carefully. The final result of jaw angle surgery is ensured by the doctor’s communication with the patient before the surgery, not during the surgery. The surgical procedure cannot be judged by the patient even if he or she is awake due to the anesthetic and swelling solution. Plastic surgery itself is for the pursuit of a beautiful and healthy life, so safety is something that needs to be considered by the surgeon in the first place. Patients who want jaw angle surgery must be careful when choosing their anesthesia method.