There are many causes of mucus stools, and the mechanism of mucus stools varies from cause to cause. In general, mucus stools are mainly caused by various pathological factors stimulating the inflammation and shedding of the villi or intestinal lining of the large intestine, while infectious diseases of the intestine also often cause mucus stools. Some patients do not have organic intestinal pathology, but are closely related to mental stimulation, exertion and dietary disorders. Therefore, there are many causes of mucus stools. When mucus stools occur, the cause should be promptly identified and actively treated.