Elderly 86 years old 10 days without bowel movement, mainly considered with gastrointestinal power insufficiency, constipation, intestinal obstruction and other factors, can be dietary life adjustment, drug treatment and surgical treatment and other ways to intervene. 1. Insufficient gastrointestinal power: it can lead to slow gastrointestinal peristalsis, food residues and feces remain in the stomach and intestines for a long time, and the phenomenon of no bowel movement occurs for a long time. For this situation, we should correct the bad dietary habits in a timely manner, mainly light diet, regular diet, avoid overeating; appropriate activities, avoid sedentary, lying down for a long time; if necessary, we can also follow the doctor’s instructions to apply mosapride and other gastric stimulating drugs for treatment. 2. Constipation: it can lead to long-term defecation, dry stool and other symptoms. In addition to strengthening the diet and life management, it can also be treated with laxatives such as Keserol and Lactulose under the guidance of doctors. 3. Intestinal obstruction: the main symptom is prolonged absence of defecation and exhaust. It should be treated with continuous gastrointestinal decompression. If the symptoms are serious, surgery can be taken as appropriate. There are many reasons for not having a bowel movement for ten days, so it is recommended to consult a doctor in a timely manner to clarify the cause of the disease and then treat it in order to avoid delaying the condition.