What is the reason for the baby feeling nauseous sometimes when eating milk less than a month old?

Patient's question:

Doctor, I'd like to ask, why does my baby sometimes feel nauseous when feeding, even though it's been less than a month? Is there any way to prevent her from feeling nauseous? Thank you

Doctor's answer:

There are several reasons that can cause a baby to vomit, such as: inflammation in the throat, eating too quickly, abnormal gastric digestive function, or functional defects of the lower esophageal sphincter. Mothers should pay attention to observing the baby's mood, milk intake, supplementary food intake, and bowel movements. If everything is normal in these aspects, there is no need to worry too much. During feeding, it is important to give the baby warm water, try to feed light and easily digestible supplementary food, ensure the teat hole is filled with milk when feeding to avoid the baby inhaling too much air, eat small meals frequently, and reduce the baby's exposure to cold and heat stimuli. After improving feeding methods, the baby's vomiting should be improved.