1. What is baby diarrhea? Baby diarrhea refers to an increase in the frequency of defecation in a short period of time in infants and young children, a decrease in the amount of stool or watery stool, and is accompanied by uncomfortable symptoms such as abdominal bloating and abdominal pain. Diarrhea is one of the common intestinal diseases in infants and young children, usually caused by infection, improper diet or other factors. 2. Symptoms of diarrhea in babies 1. Increased frequency of defecation: Under normal circumstances, infants and young children defecate 1-2 times a day, but if diarrhea occurs, they will defecate frequently, even more than 5 times a day. 2. Decreased stool volume or watery stool: The baby\’s stool is usually yellow or brown and soft, but if diarrhea occurs,