Newborn spitting up is a normal physiological phenomenon, but if the child has no other symptoms, there is no need to worry too much. The reasons for vomiting are improper diet and climate change, which can cause vomiting, so you can reduce the amount of milk you feed your baby at this time. Newborns are still small and not well developed, so they are prone to spitting up when they eat milk because their cardia sphincter is not perfect. The symptoms of spitting up usually do not occur again or rarely occur after the baby is 6 months old. If the mother does not feed properly, such as feeding too quickly or too fast, it can also lead to vomiting in newborns. Each child’s level of gastrointestinal development is different and the baby’s appetite condition will be different. If the baby has indigestion, just reduce the amount of food to feed the baby.