An authoritative expert from Jun Gao Plastic Surgery Hospital said that the pie face can be turned into a melon face through face-changing surgery. X-ray examination should be carried out before mandibular angle plastic surgery to find out the causes of mandibular angle hypertrophy, and then targeted treatment should be carried out according to the details. The principle is to cut off the part that is too prominent and make the square face become a melon face. If the mandibular horn bone is too long, it needs osteotomy, and if the masseter muscle is too long, it can also be partially removed at the same time. ? Mandibular angle plastic surgery is a particularly effective method to change the face of melon seeds.