Indication: There are two main anatomical causes of sleep apnea – soft tissue hypertrophy and relaxation, and bony structure stenosis. Soft tissue problems are mostly solved by surgery in ENT department, and bony structure stenosis is mostly solved by orthognathic surgery in oral surgery. In patients with small jaws, the airway of the pharyngeal cavity is narrowed because of the bad position of the bone growth. Even if the soft tissue is removed more, the airway will still be closed, so it is necessary to artificially enlarge the airway by sawing off the bone and pulling it outward, and then fixing it with staples. This type of orthognathic surgery includes mandibular advancement surgery and bimaxillary surgery in which both the upper and lower jaws are changed. Orthognathic surgery is done simultaneously with uvulopalatopharyngoplasty when necessary. Treatment effect: The current orthognathic surgery for sleep apnea is still a good treatment effect. Surgical risks: This is a relatively large surgery, and the patient’s facial shape will change after the surgery, such as a wider face and larger chin; there are also some patients who have problems such as occlusal joint disorder and facial numbness for some time after the surgery. Pain and recovery: The pain of the surgery is relatively high. The simplest of the orthognathic surgeries, the mandibular advancement surgery, is already considered a relatively minor surgery, and it takes about a month for patients to recover slowly; the recovery time for double jaw surgery is even longer. Hospitalization time: about two weeks Surgery cost: about 10,000 yuan or more for mandibular advancement surgery alone; about 20,000 yuan or more for the uvula and mandibular advancement surgery together; about 50,000 yuan for double jaw surgery?