Newborn babies have a lot of milk flaps, which is mainly related to cold, indigestion, lactose intolerance and other factors. 1. Cold: A cold abdomen in a newborn can lead to intestinal dysfunction and a decline in digestive function, which can lead to a lot of milk flaps in the stool. 2. Indigestion: the newborn’s stomach and intestines are not fully developed, when feeding too much milk or too fast, it is easy to cause indigestion, the protein or fat in the milk has not been digested completely, it will be discharged from the body, which will be manifested in the stool of the milk petals. 3. Lactose intolerance: The lack of lactase or low lactase activity in newborn babies leads to lactose intolerance, which leads to digestive disorders when drinking breast milk or infant formula, resulting in the inability to fully digest and absorb lactose in dairy products, leading to excessive milk flaps, abdominal distension, and usually crying, restlessness, vomiting and other symptoms. There may also be other causes of excessive milk flaps in newborn babies, so it is recommended to go to the hospital in time for a complete examination to identify the cause of the problem, and then give targeted treatment under the guidance of the doctor.