1. What is diarrhea in a one-year-old baby? Diarrhea in one-year-old babies refers to the symptoms of diarrhea in babies around 1 year old. It usually manifests as increased stool frequency, pulpy stool, yellow or green color, and even discomfort such as fever and abdominal distension. This situation is relatively common during the baby\’s growth process, but if not handled properly, it will affect the baby\’s health. 2. What are the causes of diarrhea in one-year-old babies? 1. drink