What are the reasons for the foul smell of newborns fed with formula milk?

Patient's question:

Newborn four and a half months old. Formula-fed. Recently, there have been frequent occurrences of granular stools. Today, there were three or four bowel movements. Not runny or dry. Thicker, yellow, and sour-smelling. What could be the reason? How should it be adjusted?

Doctor's answer:

Children who are formula-fed may have pellet-like stools, which is called "milk curd stools." This is often caused by incomplete absorption of high-protein content and is a normal physiological phenomenon. As long as it is not loose stools but instead yellow, soft, and pellet-like, there is no need to worry about it. It usually disappears as the child's digestive ability improves. If the baby's feeding situation has not changed, pay attention to avoiding exposure to cold, especially the abdomen and feet. It is recommended to take a stool sample that is different from the previous one for a routine stool examination.

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