Protein allergy in infants may be due to heredity, immature immune system and other reasons.
1. Genetic factors: If there is someone in the family who is allergic to protein, it is very likely to be inherited, thus the situation of infants being allergic to protein occurs.
2. Immune system immaturity: Since the immune system of infants is not yet mature, immune disorders may easily occur. Some infants may have symptoms of immunocompromise, and there may also be symptoms of hyperfunctioning and disturbances in the balance, which may trigger hypersensitivity reactions.
Note: When an infant develops a protein allergy, it is important to go to the hospital in a timely manner to identify the cause of the protein allergy and target the treatment.