There are several reasons for abdominal pain after eating: 1, acute pancreatitis, acute pancreatitis will lead to pain in the upper abdomen, the pain is strong and lasts for a long time, sometimes it also radiates to the back, there are also nausea, vomiting, fever and other symptoms, a few people will also have jaundice symptoms. If the acute pancreatitis is particularly serious, there will be gastrointestinal bleeding, infection, shock and other symptoms. 2, irritable bowel syndrome, irritable bowel syndrome will lead to abdominal pain, but also bloating, abnormal bowel movements and other symptoms. 3, gastric ulcer, gastric ulcer will lead to epigastric pain, and pain after meals is very obvious, will last about 2 hours, outside the improper diet, weather changes and other circumstances will also lead to strong pain. 4, gastrointestinal diseases, such as gastritis, pain, pain, pain, pain, pain, pain. Gastrointestinal diseases, such as gastritis, gastric ulcer, gastric perforation, enteritis, intestinal obstruction, etc. If you eat food that is not easily digested, the burden on the stomach and intestines will increase, and the symptoms of abdominal pain will appear.