To make the forehead fuller, the most commonly used method is micro-plastic surgery, which involves injecting a certain filling material into the forehead. There are two filling materials to choose from: the first material is hyaluronic acid, which is divided into small molecules. There are three types of hyaluronic acid, medium molecule and large molecule. For forehead enlargement, medium molecule or large molecule hyaluronic acid is generally used because their degree of cross-linking, that is, their viscosity is higher, so the stability and filling effect will be better. The advantage of filling hyaluronic acid is that the operation is simple and the recovery time is relatively fast; however, there are also two disadvantages: 1. It may cause blood vessel embolism in the forehead, 2. After filling the forehead, hyaluronic acid will slowly metabolize, usually about half a year, and the effect may be lost. , so another filling injection is required. The second material is autologous fat, which means the fat accumulated in the body, such as buttocks, abdomen or inner thigh fat, is taken out and then injected into the forehead.

Since the fat is your own, there will be no rejection reaction. However, not all the fat filled into the forehead will survive. Generally, about 70% will survive. The non-viable fat may liquefy, and the patient may experience pain, pus or fluid discharge< /p>