Patients appear to eat on the occurrence of stomach pain, mainly consider the following aspects of the cause: 1, consider patients have acute gastritis, mainly due to the impact of drugs or food, such as eating irritating drugs, such as metronidazole, tinidazole, etc., a large number of spicy, stimulating food or drinking alcohol, will cause damage to the gastric mucosa, so late eating will lead to stomach pain. 2, consider that there is Helicobacter pylori Infection. The long-term infection will cause gastric mucosa congestion, edema, erosion and bleeding, which will cause stomach pain after eating. 3, consider ulcer or perforation, which is caused by further stimulation on top of gastritis. 4, consider gastric polyps or gastric cancer and other stomach-related diseases, consider patients eat too cold or spicy food, these foods can also cause this situation to occur.