The pain is a symptom of abdominal discomfort and is caused by the following factors. 1, gastrointestinal functional dyspepsia: mostly due to irregular diet, overeating, often eating spicy and irritating, high-fat food, abdominal cold, etc. can cause functional dyspepsia, abnormal gastrointestinal motility, functional disorders caused by abdominal fullness, abdominal pain and other symptoms. You can take morpholine, stomach dissipation tablets, bifidobacteria and other drugs to regulate the diet should be light, regular. 2, chronic gastritis: chronic gastritis is a chronic, inflammatory lesion of the gastric mucosa tissue, will cause abdominal pain, diarrhea, bloating, indigestion and other symptoms, you can take meclizine, ranitidine, omeprazole, lansoprazole and other treatment. Pay attention to eating less stimulating food, establish good eating habits and avoid overeating.