The causes of diarrhea in babies may include indigestion, enteritis, intestinal flora imbalance, abdominal cold, or improper diet. It is recommended to undergo a comprehensive examination and treat according to the condition. For diarrhea caused by indigestion, medications such as MimiAi, Simida, or Montmorillonite Powder can be tried for adjustment. Additionally, parents should pay attention to keeping the baby warm to prevent abdominal cold.