The color of the stool from constipated patients is mostly dark yellow or brown, mainly because the stool stays in the intestinal tract for a long time and the stool is dry and hard, so the color is darker, but if a constipated patient has black stool, it is necessary to consider whether there is a problem of gastrointestinal bleeding. Patients with constipation are advised to pay attention to diet and exercise, drink more water, and use medication to relieve constipation if necessary. Patients with long-term constipation cannot excrete toxins, which are absorbed into the body and can easily develop facial acne, rashes, and in severe cases, digestive tumors. The incidence of digestive tumors in constipated patients is more than five times higher than in normal people, so a comprehensive approach must be used to manage constipation.