1. Causes of loose stools in babies: loose stools in babies may be caused by many reasons, such as infectious diarrhea, indigestion, allergies, etc. Among them, infectious diarrhea is one of the most common causes. In this case, the baby\’s stool will become watery, even yellow-green or blood-streaked. 2. How to judge whether the baby has loose stools. To judge whether the baby has loose stools, you need to observe the color and texture of the stool. Under normal circumstances, your baby\’s stool should be yellow or brown and have a solid texture. If there is watery or blood-streaked condition, then