Patient's question:
How to determine if a baby has a protein allergyDoctor's answer:
When infants are switched from breast milk to cow's milk due to insufficient breast milk or other reasons, or when supplementary foods, especially protein-rich foods, are added, children may suddenly develop severe diarrhea, with some even having bloody stools. These infants may be allergic to cow's milk protein or intolerant to protein in cow's milk and other foods, which can lead to food antigens penetrating the mucosa and triggering immune reactions. If the diarrhea is caused by lactose intolerance, lactose-free formula should be given to the child.