Low and narrow forehead can be remedied by hyaluronic acid injection, fat filling and implantation of prosthesis. 1. Hyaluronic acid injection: minimally invasive treatment means, hyaluronic acid will be injected into the forehead area for filling, can improve the situation of low and narrow forehead, the general effect can be maintained for half a year to a year or so, can be absorbed and metabolized by the human body, the need to repeat the injection. 2. Fat filler: you need to extract the abdomen, thighs and other parts of the fat, after professional purification process, the fat particles injected into the forehead area, through the filler to improve the problem of low narrow, after the survival of the effect can be permanent, and feel natural. 3. Implantation of prosthesis: The prosthesis will be put into the low and narrow forehead area through surgery, which can also play a good filling effect, but it is easy to be rejected and shifted. No matter which way exists a certain degree of risk, candidates need to choose a formal organization.