Usually fasting food and water within 2 hours after tooth extraction, and after 2 hours the doctor will usually advise the patient to eat some cool, soft, warm and semi-liquid nutritious food, which is beneficial to the recovery of the wound. 1. cool: within 2-4 hours after tooth extraction, some cool liquid diet can be eaten, which can not only relieve the pain after the anesthetic, but also reduce the degree of edema in the extraction site. Such as cool milk, cool water, etc., but also pay attention to the moderate degree of coolness, provided that the patient can drink it comfortably and the other teeth are not stimulated by cold; 2. Soft: The diet after tooth extraction is mainly recommended to be liquid or semi-liquid, which can minimize the damage of food to the trauma. The duration is based on when the patient’s pain is relieved and when the swelling of the extraction site subsides. You can choose such as rice flour, egg custard, rice porridge, soft noodles, as well as mashed potatoes, mashed pumpkin, mashed spinach, etc.; 3. Warm: Within 1 week after tooth extraction, it is not recommended to eat food that is too hot or too hot, which may stimulate the blood vessels at the extraction site to dilate and cause secondary bleeding of the wound, and is also not conducive to the healing of the wound. If you want to eat, you can put the food to warm before eating; 4. Nutritious food: In the first few days after tooth extraction, because the extraction site is in the initial stage of trauma, it is easy to have adverse complications such as gum bleeding, so the intake of diet should not be too much. However, if the patient’s pain gradually eases, he can start to consider eating some high nutrition and high protein diet, such as chicken soup, fish soup, mashed eggs, etc. In addition, pure fruit juice or vegetable juice is a good choice to replenish the vitamins that are lacking due to insufficient fresh fruits and vegetables, such as orange juice, apple juice, tomato juice, spinach juice, etc.