Crooked face for corrective surgery may have certain risks, including difficulty in opening the mouth, hematoma, infection, twisting of facial muscles, etc., which need to be noted. 1. Difficulty in opening the mouth: mostly caused by improper handling of biting muscle during the surgery, but this phenomenon can disappear in about one week after the surgery, avoid opening the mouth or laughing after the surgery to avoid this situation. 2. Hematoma: If there is a mistake during the surgery, the blood vessel damage can cause hematoma, usually can drain, remove the hematoma, and re-drape to improve the situation. 3. Infection: mainly due to the hematoma is not treated in time, once the infection occurs, immediately wash the wound, use sensitive antibiotics, and drain it, can be very good improvement. 4. Facial muscle distortion: If the facial nerve is accidentally damaged during the surgery, numbness and so on may occur, leading to facial muscle damage and facial distortion. It is recommended to go to the hospital and have the facial correction surgery under the operation of professional doctors to prevent the occurrence of accidents.