Unshaped stools for years may be caused by dietary factors, irritable bowel syndrome, intestinal flora imbalance, chronic enteritis and other reasons. 1. Dietary factors: some people like to eat spicy, cold food, stimulate intestinal peristalsis, resulting in faster intestinal peristalsis, causing stools not shaped. 2. Irritable Bowel Syndrome (IBS): mental tension, anxiety, depression, stress and other triggers of IBS lead to unshapely stools for many years. 3. Intestinal flora imbalance: the harmful bacteria in the intestines multiply more, leading to the appearance of the stool not shaped for many years. 4. Chronic enteritis: chronic inflammation exists in the intestinal tract, due to the stimulation of inflammatory factors caused by intestinal peristalsis accelerated, resulting in the stool not shaped for many years. There are many reasons why the stools are not shaped for years, so it is recommended that the patient consult a doctor in time to find out the cause of the disease and follow the doctor’s instructions for treatment.