Why would a baby suddenly develop an allergy to breast milk?
Baby suddenly developing an allergy to breast milk is usually related to the baby's own factors, genetic inheritance, maternal factors, etc.
1. Baby's Own Factors
Insufficient milk intake after birth may lead to changes in immunoglobulins in breast milk, thus causing allergic symptoms in the baby. Additionally, if the mother heats or otherwise processes breast milk during breastfeeding, it may alter the immunoglobulins in the milk and trigger allergic reactions in the baby.
2. Genetic Inheritance
If prenatal examinations before or during pregnancy are not properly conducted, the baby may be born with genetic defects. This can result in the presence of abnormal antibodies or other substances in the baby’s body, leading to allergic reactions.
3. Maternal Factors
If the mother experiences allergic symptoms during pregnancy—such as reactions to eating seafood or drinking milk—it may cause changes in the immunoglobulins in her breast milk after delivery, thereby triggering allergic symptoms in the baby.
Besides the above common causes, other possible factors such as improper feeding practices or the baby’s physical intolerance may also lead to allergic reactions. A thorough medical evaluation at a hospital is necessary to identify the specific allergen and receive proper diagnosis and treatment under a doctor’s guidance.