1. Causes of infant diarrhea caused by milk powder 1.1 Immature digestion 1.2 Bacterial infection 1.3 Allergic reaction Infant diarrhea refers to the increased frequency of defecation in infants and young children, thin stool, abnormal color, accompanied by varying degrees of abdominal bloating, abdominal pain and other symptoms. Among them, dietary problems are one of the main causes of infant diarrhea. For milk powder feeding