1. What is baby diarrhea? Diarrhea is a common disease in babies\’ daily life. Diarrhea refers to an increase in the frequency of bowel movements in infants, watery or yellow-green stools, and even symptoms such as fever and vomiting. If left untreated, your baby\’s health may be affected. 2. Why does it cause diarrhea in babies? There are many causes of diarrhea in babies, such as infectious diarrhea, food allergies, indigestion, etc. The most common cause is infectious diarrhea, in which case you need to go to the hospital promptly. three