Patients with loose and unshaped stools are considered to have three factors, as follows: First, acute and chronic gastrointestinal diseases: such as acute gastroenteritis, ulcerative colitis, intestinal tuberculosis, intestinal tumors, Crohn’s disease and so on. Second, extra-intestinal factors: such as chronic hepatitis, cholecystitis, pancreatitis, diabetes mellitus, hyperthyroidism, etc., all of which can cause fast intestinal peristalsis, unformed stools, and there will be abdominal distension, abdominal discomfort, nausea, vomiting and other gastrointestinal symptoms, and even steatorrhea. Third, psychological and mental factors: such as gastrointestinal neurosis, mental stress, environmental factors, etc., can cause irritable bowel syndrome, stools and unshaped. When the nature of stool, color and bowel habits change, it is necessary to pay attention to further examination of colonoscopy, etc., to clarify the cause of the disease and then give comprehensive treatment.