Elderly people with severe constipation should make lifestyle adjustments, dietary adjustments and medication adjustments according to the causes of constipation, as follows: First, life adjustments: usually drink more water to keep the stool moist and prevent constipation caused by lack of water and dryness in the intestines. Adjust the diet structure, eat more fresh fruits and vegetables, as well as high-fiber foods to promote defecation. Second, regular defecation: develop the habit of regular defecation, preferably to get up early in the morning and go to the toilet in time. Third, dietary conditioning: try to avoid the intake of high-protein foods, such as eggs, milk, fish, shrimp, meat, etc., and give light, warm and soft, easily digestible food. Fourth, exercise conditioning: strengthen exercise to promote intestinal peristalsis, or give abdominal massage, abdominal acupuncture points for moxibustion, acupuncture, etc., to promote intestinal peristalsis. Fifth, medication: if the symptoms do not ease, give slow laxative drugs, such as Si Mo Tang oral liquid, lactulose oral liquid, but avoid strong stimulating drugs such as rhubarb, senna leaf, fruit guide tablets. If the elderly have severe constipation without relief, it is best to perform colonoscopy as well as abdominal CT examination to exclude organic lesions.