Patients often have unshaped stools, consider three causes, as follows: First, acute and chronic gastrointestinal diseases: such as acute gastroenteritis, ulcerative colitis, intestinal tuberculosis, intestinal tumors, Crohn’s disease, etc. Second, extra-intestinal factors: such as chronic hepatitis, cholecystitis, pancreatitis, diabetes, hyperthyroidism, can cause rapid intestinal peristalsis, unformed stools, and will appear bloating, abdominal pain and other gastrointestinal symptoms, and even fatty diarrhea. Third, psychological and mental factors: such as gastrointestinal neurosis, mental tension, environmental changes, etc., causing irritable bowel syndrome. When there is a change in the nature and color of the stool and bowel habits, it is important to pay attention to further colonoscopy and abdominal CT examination to clarify the cause and give comprehensive treatment. In daily life, we should pay attention to abstain from eating raw, cold, hard, spicy and stimulating foods, eat less and more meals, and avoid overeating to promote the recovery of the disease.