Elderly intestinal dysfunction is mainly caused by improper diet, irritable bowel syndrome, gastritis, etc. It can be treated by adjusting diet and taking oral omeprazole and other medications. 1. Improper diet: the elderly intake of dietary fiber is small, easy to cause constipation, resulting in gastrointestinal dysfunction, by adjusting the diet, eat more vegetables, fruits and other foods rich in dietary fiber, can relieve constipation. 2. Irritable bowel syndrome: low mood, anxiety and other factors can lead to irritable bowel syndrome, causing abdominal pain, constipation, diarrhea and other symptoms, oral montelukast and other treatments for diarrhea, the use of lactulose and other treatments for constipation. 3. Gastritis: patients with gastritis may have abdominal pain, intestinal dysfunction, usually using omeprazole and other proton pump inhibitors to inhibit gastric acid secretion, magnesium aluminum carbonate and other protection of the gastric mucosa. Adverse effects of omeprazole include abdominal pain, headache, etc. It is prohibited for those with gastrointestinal bleeding. Adverse reactions of magnesium aluminum carbonate include dry mouth, loose stools, etc. It is forbidden for those who are allergic to this drug. All of the above medications should be used under the guidance of a doctor, avoid self-medication. There are many other causes of intestinal dysfunction in the elderly, if the above symptoms occur, it is recommended to go to the hospital in time for early and regular treatment.