Newborn babies spit out their tongues may be hungry, but also may be other reasons, because there are many reasons that cause newborn babies to spit out their tongues, such as indigestion, colds, mental retardation, as follows: a. Indigestion: If the baby eats too much milk for a long time, parents feeding time interval is too short, or the abdomen, feet cold and other causes of indigestion, in addition to nausea, vomiting, bloating, diarrhea, there will also be The symptoms of spitting out the tongue. Cold: If the baby suffers from upper respiratory tract infection, because the nose is not ventilated, open-mouth breathing, there will also be symptoms of tongue vomiting, accompanied by fever, sneezing, runny nose, etc. Mental retardation: Due to chromosomal abnormalities, babies with Down’s syndrome have obvious mental retardation, and their tongues often stick out of their mouths, and they also have a special face. Hunger: If the baby is hungry, he or she will make sucking movements. If the parents touch the corner of the baby’s mouth gently, he or she will make the movement of sticking out his or her tongue to look for food.