There are many reasons that lead to less defecation, unobstructed bowel movement and big stomach, such as indigestion, intestinal obstruction, intestinal occupying lesions, etc. Common treatments include general treatment, medication, surgery, and so on. 1. General treatment: If constipation is the cause of the large stomach, daily consumption of laxative food, such as celery, bananas, etc., less spicy and stimulating food, stimulate the gastrointestinal tract to aggravate the symptoms of constipation. 2. medication: suitable for gastrointestinal inflammatory factors caused by defecation, such as gastrointestinal peristalsis function is weak, you can use to promote gastrointestinal motility drugs, such as domperidone. If the symptoms are caused by tuberculosis, anti-tuberculosis treatment is needed. 3. Surgery: If the disease is caused by intestinal obstruction or gastrointestinal occupational lesions, remove the diseased intestine. If the symptoms persist, it is recommended that the patient go to the Department of Gastroenterology to find out the cause of the disease and treat it in time, so as not to delay the disease.