It is possible to eat fish on the second day after tooth extraction. Generally speaking, the medical advice for eating after tooth extraction is to eat warm, cool and soft food, not particularly hard or hot food, and fish is certainly in line with these conditions as long as it is cooked properly. As a kind of meat we often eat, fish has a very low fat content and is rich in vitamins, proteins and trace elements, which has a very good effect on human nutrition. Generally, 24 hours after tooth extraction, patients are advised not to brush their teeth and not to rinse their mouths, and to eat mainly liquid, semi-liquid and soft food as much as possible. After 24 hours, the extraction wound has been stabilized, and the operation of brushing and rinsing can be carried out at this time, and the food is gradually approaching to the daily general food as time goes by.