The causes of vomiting in newborn babies are divided into: physiological vomiting and pathological vomiting. 1. pathological vomiting, if the baby starts vomiting 24 hours after birth, the amount is high, even in the form of jet vomiting, or in addition to vomiting is accompanied by other abnormal symptoms and signs, this indicates that the baby is sick and caused by vomiting, belongs to pathological vomiting, should go to the hospital for medical treatment. 2. physiological vomiting: give Do not feed your baby too fast or too quickly to avoid entering the air in the stomach. The number of feedings should not be too many, and the amount of milk should not be too large each time. Don’t turn your baby over too early after feeding. It’s best to put your baby up and gently pat its back to make it burp a few times before putting it back to bed, so that it is less likely to spit up.