When the stool is dispersed in the form of crumbs in the presence of water, it means that the stool is not shaped, and its common causes are irritable bowel syndrome, colitis, food allergy, etc. 1. Irritable bowel syndrome: certain psychological factors such as anxiety, tension, depression or intestinal flora imbalance, etc., causing intestinal peristalsis, absorption dysfunction, the symptoms of unshaped stool. 2. Colitis: Inflammation stimulates the intestinal mucosa and causes damage, resulting in the intestinal tract not being able to fully digest and absorb the water in the food, and the symptoms of unshaped stools appear. 3. Food allergy: patients who are allergic to certain foods may experience digestive symptoms such as diarrhea, bloating and abdominal pain. There may also be other causes of irregular bowel movements, so it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and carry out standardized treatment under the guidance of the doctor.