The causes of frequent spitting up in newborns include physiological factors such as improper feeding, as well as pathological factors such as indigestion and lactose intolerance. The main method is to take general treatment and probiotics, lactase and other drug treatment. 1. Physiological factors: the newborn’s stomach is horizontal, if coupled with overfeeding and other factors, the child is very easy to spit up, this time you just need to eat more frequent meals, burp after eating milk, and at the same time moderate side lying on it. 2. indigestion: newborns need to consume a lot of nutrients every day to maintain growth and development, coupled with their own digestive function is not perfect, digestive enzyme activity is low, prone to indigestion, and thus spit up frequently. You can take probiotics to relieve it. 3. Lactose intolerance: This is an important cause of frequent spitting up, often accompanied by diarrhea, bloating, crying and so on. It can be treated with lactase. There are other causes of frequent spitting up in newborns, and it is recommended to seek medical attention in time to be evaluated by a neonatologist and to take reasonable disposition. All the above medications should be used under the supervision of a doctor.