The common causes of loose stools in patients are functional dyspepsia, chronic colitis, and colon polyps, which need to be clarified by e-colonoscopy and routine stool tests. In case of functional dyspepsia, fat droplets can be found in the stool, or undigested food residues can be seen visually in the stool, which can be treated by supplementing digestive enzymes, such as multi-enzyme tablets plus neateners. In the case of chronic colitis, it is necessary to regulate with drugs such as rectification or pefixan, plus compound glutamine enteric granules for more than two weeks. If a polyp is found in the colon, electrocoagulation and electrosurgery of the polyp will be performed under an electronic colonoscope, and this symptom will be significantly relieved after the surgery. When you have loose stools, you should eat less spicy, fried and other stimulating foods in your diet, and you should not drink alcohol.