Two common forehead filling methods are: 1. Prosthetic augmentation: Prosthetic augmentation refers to the surgical method of sucking out fat from fat-rich parts of human body, such as abdomen, buttocks, thighs or upper arms, and after special treatment into pure fat particles, it is necessary to perform prosthetic augmentation in the defective recipient area to change the shape of the recipient area. 2. Injection augmentation is another augmentation method besides prosthesis: autologous fat particles or collagen are mostly used as fillers for augmentation, and these two fillers are easily absorbed by the body, so it is necessary to inject 1 time every two or three months, and it is necessary to inject 2-4 times for augmentation. Prosthesis implantation rules require surgery, and filling materials are placed under the skin, which is a good way to shape.