Question
Why does a baby born four days ago defecate after each feeding of formula milk?
Answer
A newborn frequently defecates within four days after feeding formula milk, which may be related to a lack of digestive enzymes or lactose intolerance. It is recommended to conduct a digestive enzyme test and consider switching to a lactose-free formula milk to observe if the symptoms improve. If the symptoms improve, it may indicate lactose intolerance; if not, further detailed examination of the digestive tract is needed.