Level 1: Causes of dry stool in babies 1. Unbalanced diet is one of the common causes of dry stool in babies. 2. Lack of exercise is also one of the reasons for dry stool in babies. 3. Intestinal flora imbalance can also cause dry stools in babies. 4. Drug side effects may also cause dry stool in babies. 5. Dry climate environment will also have an impact on the baby\’s stool. 6. Imperfect digestive development is also the cause of dry stool in babies.