Level 1: Analysis of causes of baby\’s diarrhea There are many causes of baby\’s diarrhea, the most common one is infectious diarrhea, which is usually caused by viral, bacterial or parasitic infection. In addition, babies\’ food allergies, indigestion, tooth eruption, etc. may also cause diarrhea. Level 2: How to judge whether the baby has diarrhea. Parents can judge whether the baby has diarrhea by observing the child\’s stool. Under normal circumstances