The prosthesis used for forehead augmentation surgery (silicone film, expanded body, biological patch porous polyethylene, etc.) are basically medical silicone prosthesis and expanded body which are more used now. Medical silicone prosthesis will not have abnormal reactions after implantation in human body. Prosthetic forehead surgery is relatively safe, once there is an abnormal reaction, also be able to timely perfect removal of the prosthesis. But there may be the following risks: 1, infection: prosthesis implantation forehead augmentation surgery is more prone to complications. Because the prosthetic material is soft, it will be more time-consuming in the process of sculpting and shaping, resulting in the parts that need to be filled being exposed to the bacterial air for too long, easily increasing the chance of infection; 2, bleeding and hematoma: more bleeding from the incision during the operation, hematoma may occur; 3, damage to the facial nerve and supraorbital nerve: if the deep surface of the superficial temporal fascia on both sides is stripped too low, it is easy to cause nerve damage; 4, loss of frontal lines. Due to careless operation during forehead augmentation surgery, resulting in nerve damage, and then the frontal lines disappear; 5, prosthesis rejection: the prosthesis is a foreign body after all, such as implantation may occur in the body prosthesis rejection reaction; 6, poor form: prosthesis implantation may also lead to excessive protrusion or concave prosthesis, around the incongruity. The effect of forehead augmentation with prosthesis is very obvious, although the forehead augmentation surgery is not complicated, but in order to ensure the safety of the surgery, or to choose the regular hospital forehead augmentation, in order to minimize the risk of forehead augmentation.