Most of the milk flaps are caused by the inability of newborns to absorb the proteins and fats in dairy products because of the imperfect development of their digestive functions. Generally, as the gastrointestinal function of newborns slowly improves, the phenomenon of milk flaps will gradually improve after 6 months of age. If after 6 months of age, frequent milk flaps still occur, it may be related to improper feeding methods of parents, such as frequent feeding and short feeding intervals, which may cause digestive problems in newborns and cause the phenomenon of milk flaps. It is recommended that newborns who are breastfed should be fed on demand, and the feeding time should be gradually regular after the first month, generally with an interval of 2-3 hours between feedings. If the newborn is formula-fed, you need to pay attention to the brand of milk powder and whether the ratio is correct. Changing the brand of milk powder may also cause the newborn to have milk flaps, so you can consult your pediatrician and choose a suitable brand of milk powder. When the formula is rationed, the ratio should be in accordance with the proportion, too thin or too thick may affect the digestion of newborns, and the situation of milk flaps. Parents can also give their newborn’s abdomen some massage, using warm hands to gently massage the newborn’s abdomen clockwise for 10-15 minutes, three times a day, to promote the newborn’s digestion and absorption. In daily life, also pay attention to the newborn’s abdomen to keep it warm, so as not to catch cold and cause gastrointestinal discomfort. If the number of newborns pulling milk flap increases, the milk flap particles are relatively large, and accompanied by crying, vomiting and other situations, it may be caused by disease factors, then you need to promptly take the newborn to the hospital for examination, so as not to delay treatment.