Bone grinding surgery and bone cutting surgery both have the function of improving facial morphology, mainly by way of correcting the overly high and protruding bones of the face, improving the physiological bone protrusion of the cheekbone, zygomatic arch and mandible, and achieving cosmetic purposes. The main difference between the two mainly includes the surgical method, the principle of surgery, the scope of application and side effects, etc. 1. Surgical method: Bone grinding surgery is usually performed under local anesthesia, with a small incision made in the jaw area, and a small portion of the bone is removed by way of subperiosteal stripping. While bone cutting surgery is usually performed under general anesthesia, incisions are made in the mouth to eliminate the cheekbone or zygomatic arch; 2, the principle of surgery: the principle of bone grinding surgery is to remove part of the cheekbone, which is a small change to the face, while bone cutting surgery is to make the more prominent angles of the face become more fluid, and the role of face modification is more obvious; 3, the scope of application: bone grinding surgery for facial contour change is smaller, more suitable for cosmetic needs Low demand for cosmetic surgery. While bone cutting surgery can more obviously change the facial contour, more suitable for larger facial bones, obvious bone thickening or ectropion deformity, and higher cosmetic needs of the population; 4, side effects: either way, because it is invasive operation, there are certain side effects, compared to bone grinding surgery less bleeding, small wounds, higher safety. However, both of them have certain dangers, which may lead to hemorrhage, infection, and tooth damage. In addition, if the zygomatic arch and zygomatic bone are cut and ground too much, it can even lead to weak bones, fractures and other zygomatic arch fractures. It is not recommended to undergo cosmetic surgery by grinding and cutting bones in non-essential cases. It is recommended that the majority of people accept the imperfections in their own appearance, avoid excessive pursuit of beauty, and should take health as the main criterion for defining beauty. If surgery is needed, it is recommended to go to a regular hospital to help reduce the risk. After the surgery, pay attention to a light diet, pay attention to the clean and dry post-operative area, and avoid getting wet to avoid infection.