Patients with constipation are mainly due to the following reasons: 1. Patients with low activity, especially those who are bedridden for a long time, have even less activity, resulting in weakened gastrointestinal function and slowed intestinal peristalsis, causing constipation. 2. Unbalanced nutritional intake, poor appetite, low food intake, vegetables, fruits and other fiber-rich foods to eat less, can cause slowed intestinal peristalsis and constipation. 3. Low water intake, which can also result in Dry feces, resulting in feces embedded in the rectum or anus difficult to discharge, resulting in constipation. 4, poor health, failure, weakness and other factors can cause fecal discharge difficulties. 5, the impact of drugs used, such as chemotherapy drugs used, antidepressants, may cause constipation.