Long-term abdominal pain may be caused by chronic gastritis, chronic hepatitis, irritable bowel syndrome and so on. 1. Chronic gastritis: chronic gastritis may occur due to improper diet or damage to the gastric mucosa, etc. Long-term epigastric pain may occur when the gastric mucosa is stimulated by inflammation and gastric acid. 2. Chronic hepatitis: when inflammation occurs in the liver tissue, the inflammation stimulation leads to congestion and edema of the liver, resulting in increased pressure on the hepatic peritoneum, which leads to long-term symptoms of epigastric pain. Abdominal pain caused by internal organs such as the liver is not significant and the localization is not clear, so we need to be vigilant. 3. Irritable bowel syndrome: may be psychological, genetic, autonomic function abnormalities and other factors leading to gastrointestinal dysfunction. The appearance of persistent or intermittent episodes of abdominal pain, generally relieved or improved after defecation, some patients have lower abdominal pain after eating. When long-term abdominal pain occurs, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for further examination, with the help of the doctor to clarify the cause, and targeted treatment or therapy.