1. What is acute diarrhea in babies? Acute diarrhea refers to a digestive disease in which symptoms such as diarrhea, abdominal pain, nausea, and vomiting occur within a short period of time. Acute diarrhea in babies is usually caused by infections, including bacteria, viruses, and parasites. 2. What are the symptoms of acute diarrhea in babies? 1. Diarrhea: The number of bowel movements per day increases, and the feces becomes thinner and lighter in color. 2. Abdominal discomfort: possible