Dry vomiting and spitting up of milk in babies may be related to physiological factors that the gastrointestinal tract is not yet well developed, or it may be caused by gastrointestinal dysfunction, indigestion and other manifestations. Usually babies under three months old are likely to have symptoms of dry vomiting and spitting up milk, which is mainly related to their own development. However, as the baby grows older, if the baby has obvious symptoms of dry vomiting and spitting up milk, you should consider whether it is a gastrointestinal dysfunction or indigestion. Cold exposure or poor diet are also common triggers for children in general. Cold exposure may cause gastrointestinal symptoms. Drinking too much milk at one time or drinking milk that is too cold may also irritate the gastrointestinal tract and cause similar symptoms. There are many other possible causes for babies to vomit and spit up milk. It is recommended that the patient go to the hospital in time for a complete examination to clarify the cause of the disease and then give targeted treatment.