Filling hyaluronic acid surgery for the whole face, it is more convenient to take materials, and the patient’s pain is relatively small, at the same time, hyaluronic acid is more delicate, for static lines, crow’s feet, and the filling of head lines can achieve good results. However, the cost is relatively high, and hyaluronic acid will be absorbed, need to be filled repeatedly, and has a certain surgical risk, as follows: 1, infection: because the dose of hyaluronic acid filler for the whole face is relatively large, and there are many needle holes in the face for injection, so the probability of bacteria or viruses entering into the subcutaneous skin with the needle holes is relatively large. Once infection occurs, if it is localized, oral antibiotics can be taken; if the infection spreads to the whole body with blood, the patient will have fever, and need to use antibiotics intravenously, as well as local dressing change to control the infection; 2, vascular embolism: full-face filling of hyaluronic acid, facial injection points are more, there is a possibility that hyaluronic acid is injected into the blood vessels, resulting in blood vessel blockage, and the tissues of the blood supply area will be affected by ischemia, and the local skin may be darkened and the skin may become darker. The tissue in the area of blood supply will be affected by ischemia, and the local skin may be darkened and the patient will feel pain. If hyaluronic acid is injected into large blood vessels, such as the ophthalmic artery, the patient may suffer from immediate blindness, cerebral infarction, or even life-threatening; 3. Localized skin depression or protrusion: Due to the filling of hyaluronic acid in the whole face, the absorption of hyaluronic acid is not the same in different parts of the face, and the absorption is fast in some parts of the face and slow in some parts of the face, which may lead to small local protrusion or depression; 4. Excessive injections may lead to the skin showing a swollen and transparent state, and the facial expression may not look good. state, and the facial expression will look unnatural.