Often not having a bowel movement for a few days may be related to dietary habits, gastrointestinal disorders, and intestinal obstruction. It can be solved by improving diet, medication and surgery. 1. Dietary habits: If you have recently eaten foods with low fiber content and reduced water intake, it may lead to a decrease in digestive juices in the gastrointestinal tract, dry stools, and in severe cases, no bowel movement for a few days. It is recommended to eat a little more food rich in fiber, such as celery, leeks, fungus and so on. Daily light, regular diet, avoid spicy, stimulating food, moderate exercise. 2. Gastrointestinal dysfunction: it is caused by biological, psychological, social, disease and other factors of gastrointestinal anomalies, resulting in functional constipation, whose symptoms can be manifested as a few days without defecation. Patients can choose medication, such as mosapride, itopride, etc. to improve the function of peristalsis of the digestive tract and promote gastric emptying. 3. Intestinal obstruction: it refers to the obstruction of the passage of intestinal contents caused by any reason, and when there is complete obstruction of the intestinal tract, the phenomenon of inability to defecate can occur. Gastrointestinal decompression and intravenous fluids can be chosen to correct water and electrolyte disorders and acid-base imbalance. In severe cases, surgical treatments such as bowel resection and intestinal anastomosis, enterostomy, or bowel extubation may also be an option. In addition, a few days without bowel movement can also be seen in other diseases, it is recommended to consult a doctor in time, under the guidance of the doctor for targeted treatment. Please do not take medication on your own to avoid delaying your condition.