Skin depressions can be restored through hyaluronic acid injectable filler and autologous fat particle filler. 1. Hyaluronic acid injection filler: Hyaluronic acid can be injected into the area that needs to be filled, hyaluronic acid can hold up the depression through its own volume, and can make the skin surface become flat, the effect is about 5-8 months. After injection, there may be local skin granularity, local redness, local bruising, swelling and other adverse reactions, need to follow the instructions of scientific care. 2. Autologous fat particle filler: this treatment is to extract and process the autologous fat and inject it into the area that needs to be filled, which can improve the symptoms of facial depression. Autologous fat generally does not have rejection reactions, but there is a certain absorption rate, and there may be infections, hematomas, local hardness and other complications after the operation. There are many ways to improve sunken skin, you can go to a professional medical institution to choose the right way to improve.