Yellow stool is the normal color of stool, but if the stool is not shaped, consider the following three causes: 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, etc., can cause increased intestinal peristalsis, unshaped stools, and sometimes more often, and patients may have indigestion symptoms such as abdominal distension, or even fatty diarrhea. Third, psychological and mental factors: such as gastrointestinal neurosis, mental tension, environmental factors, and irritable bowel syndrome. When there is a change in the nature, color and bowel habits of the stool, we should pay attention to it, give further relevant examination, clarify the cause and give comprehensive treatment. In daily life, it is important to give warm, soft, light, easily digestible liquid or semi-liquid, as well as dregs-free universal food. Avoid spicy and stimulating foods, strong tea, coffee, alcohol and other undesirable stimuli, eat less and more meals, avoid overeating, and strengthen exercise to promote the repair of gastrointestinal function.