At present, the common clinical face-changing operations include mandibular angle plastic surgery, cheekbone plastic surgery, chin plastic, facial liposuction and so on. If your mandible is hypertrophy, you can change your face into a standard oval face or duck egg face by removing the mandibular angle. If your bones are not big, but your face is fat and round because of the well-developed masseter muscles or more fat, then you can make the masseter muscles thinner by injection, or you can take a fat pad or liposuction on your face.