You can eat on the second day after wisdom tooth extraction. When the patient is traumatized by tooth extraction, he/she can have restricted mouth opening and sore throat, etc. The diet should be mainly liquid or semi-liquid, and you can drink more milk and millet porridge, etc. Avoid opening the mouth widely. Since you cannot brush and rinse your teeth within 24-48 hours after tooth extraction, you should eat less sticky food to prevent the rapid growth of bacteria caused by the retention of plaque. You cannot eat excessively hot or spicy stimulating food, otherwise it will accelerate the blood circulation and cause capillary constriction, resulting in a large amount of blood leakage from the extraction sockets. You should not eat hard food, such as nuts and seafood with spines, to prevent scratching the extraction wound and soft tissues and causing blood clots to fall off.