If the pain is in the upper abdomen, consider the possibility of gastric disease. If the symptoms recur for a long time, it is better to check gastroscopy, because inflammation, ulcer and tumor lesions of gastric disease can manifest as stomach pain, and also abdominal pain can be obvious after eating. If the pain is located in the right upper abdomen, consider gallbladder stones and cholecystitis, the pain often occurs after eating fatty food, you can check the ultrasound of gallbladder, if gallbladder stones and cholecystitis exist, you can change your diet to a light diet, eat cholagogic drugs, antibiotics, etc. If the effect is not good, consider surgery to remove the gallbladder. If the pain is around the navel and accompanied by diarrhea, it is considered enteritis, the pain will be relieved after defecation, you can eat some intestinal probiotics to regulate, if the symptoms persist it is best to do a colonoscopy.