Hello, in addition to general anesthesia, there may be accidents in bone cutting, and there may also be massive bleeding-if the facial artery is ruptured, blood can be sprayed on the ceiling under the action of blood pressure, and the patient may die of shock after massive blood loss; Skilled osteotomy can also cause mandibular angle fracture, temporomandibular joint disorder and even dislocation, which seriously affects chewing and speaking functions. Improper operation will damage nerves and cause crooked mouth. Therefore, it is suggested that you must choose a third-class first-class hospital for bone cutting surgery and fully communicate with experienced plastic surgeons. Both doctors and patients will comprehensively judge whether bone cutting is needed and what method to choose according to personal face. I hope it helps you.