Bone cutting surgery generally refers to the reshaping of facial contours (jaw angle, cheekbone, chin) by means of surgical osteotomy for the purpose of face slimming. Bone cutting surgery is a level 4 surgery in plastic and cosmetic surgery, and requires surgical operation at a tertiary plastic surgery hospital or a tertiary general hospital with a medical aesthetic department or plastic surgery. The surgery of cosmetic bone cutting is relatively traumatic and involves certain risks, which may injure nerves and blood vessels, therefore, the professional knowledge as well as the clinical experience of the surgeon is very strict. A certain degree of swelling and change in facial appearance, accompanied by pain and other problems, will occur for a period of time after the bone reduction surgery and will improve with time. It is normal to experience facial swelling, possible small amount of blood oozing from oral secretions, and slight pain in the throat after surgery. However, if there is severe and extensive facial swelling with pressure pain, fresh blood from oral secretions or obvious facial asymmetry, you need to go to the hospital in time. Patients may find it difficult to accept for a while after surgery because of the large change in facial appearance. They can divert their attention by communicating with the doctor and physical exercise; they can also adjust by using make-up, wearing masks and hats as well as changing hairstyles. Maintain a happy mood, review regularly according to the doctor’s instructions, and pay attention to any uncomfortable symptoms, contact the surgeon and seek treatment in a timely manner.