Three days without stool may be functional constipation, intestinal obstruction, intestinal tumors and other reasons, according to its cause by adjusting the diet, medication, increase exercise, surgical treatment to solve the bowel movement. 1. Functional constipation: (1) Adjust the diet: drink a cup of honey water in the morning on an empty stomach, increase the intake of dietary fiber foods, such as dragon fruit, bananas, leeks, etc. to stimulate intestinal peristalsis to promote defecation. (2) increase exercise: you can choose fast walking, jogging, yoga and other ways to promote gastrointestinal peristalsis, promote the rapid discharge of feces. (3) Drugs: Injecting into the rectum with corkscrew to stimulate defecation or taking laxatives such as lactulose orally to soften the feces to promote defecation. 2. Intestinal obstruction: Surgery can be considered for intestinal obstruction, such as adhesion release surgery, intestinal short-circuit anastomosis, etc., to unblock the obstruction and promote the discharge of feces. 3. Intestinal tumor: if the tumor is too big and presses the intestinal lumen, it can consider surgery to remove the tumor and open up the defecation channel to promote the discharge of feces. It is recommended to consult a doctor to find out the cause of the disease and follow the doctor’s instructions.