In medicine, there is no such thing as hurting the stomach. The so-called stomach injury, in fact, is easy to cause stomach pain, bloating and other indigestion symptoms after consumption of food, mainly including unclean food, irritating food and more tannic acid food. 1. unclean food: many of them contain staphylococcus aureus, E. coli, salmonella, etc., which can easily cause acute gastroenteritis and harm the mucous membrane on the surface of the stomach. Therefore, you should pay attention to the hygiene of your diet to avoid contamination of food by bacteria and other microorganisms. 2. Stimulating food: food containing a large amount of caffeine belongs to the stomach stimulating food, such as strong tea, strong coffee and chocolate containing a large amount of caffeine; and then alcohol, alcohol is also a stimulating food, alcohol can harm the gastric mucosa, and a large amount of alcohol can even lead to bleeding of the gastric mucosa. 3. Foods containing large amounts of ellagic acid and other plant compounds: ellagic acid is a phytochemical component that exists in a large number of natural plants, such as persimmons, green beans, indigestion needs to be eaten in moderation. There are many other foods that can cause stomach upset, such as foods that contain a lot of fiber. It is important to observe which foods you are intolerant to in your regular life, and if you experience discomfort from consuming the appropriate foods, you need to actively seek medical attention.