The symptom of eating more and pooping less is usually called constipation. Possible causes of constipation include indigestion, inflammatory bowel disease, intestinal tuberculosis, and irritable bowel syndrome. Different causes require different medications, which can generally be treated by taking gastric stimulant drugs, probiotics, anti-inflammatory drugs, anti-tuberculosis drugs, and so on. 1. Dyspepsia: Due to insufficient secretion of digestive enzymes or slowing down of intestinal peristalsis, part of the food is difficult to be digested, and symptoms such as constipation and bloating may occur. When dyspepsia occurs, it is recommended to take gastric stimulating drugs such as domperidone or probiotics such as lactobacillus and bifidobacterium to regulate intestinal flora and increase intestinal motility. 2. Inflammatory bowel disease: the possible symptoms of this disease include diarrhea, constipation, blood in stool, abdominal pain and so on. Treatment of this disease is mainly with aminosalicylic acid preparations, such as luzosulfapyridine, which can effectively inhibit inflammatory mediators. If ineffective, hormones such as prednisone or immunosuppressants such as azathioprine can be used. 3. Intestinal tuberculosis: Intestinal tuberculosis is an intestinal infection caused by Mycobacterium tuberculosis infection of the intestinal tract, often manifested as abdominal pain, diarrhea and constipation alternately. Tuberculosis is usually treated with anti-tuberculosis drugs such as isoniazid and rifampicin. 4 Irritable Bowel Syndrome (IBS): This disease is a common functional bowel disease characterized by abdominal pain and changes in bowel habits. The treatment of irritable bowel syndrome with constipation is usually available lactulose to stimulate colonic peristalsis and relieve constipation. If the irritable bowel syndrome is caused by psychiatric factors, tricyclic antidepressants can be used to relieve the symptoms of constipation. If the symptoms continue to be unrelieved, it is recommended to go to the hospital in time for treatment under the guidance of a doctor.