4 months old baby pulling milk flap, mainly caused by indigestion, causes of indigestion, including digestive tract insufficiency, external stimulation, improper diet and gastrointestinal infection, etc., it is recommended to consult a professional doctor for appropriate treatment. Common causes 1, incomplete development of digestive tract function: baby in the developmental period, gastrointestinal digestive function is weak, the nervous system is not fully developed, the ability to regulate the intestinal tract is weak, it is difficult to completely digest food, so the discharge of milk flap; 2, external stimulation: baby abdomen cold, resulting in gastrointestinal dysfunction, causing intestinal flora imbalance, resulting in indigestion; 3, improper diet: feeding too much or too fast to cause accumulation of food, or baby to milk Lactose or protein allergy in milk, may also appear to pull milk flap symptoms; 4, gastrointestinal infection: immune function is poor, gastrointestinal susceptible to infection bacteria, viruses and other microorganisms, resulting in inflammatory reaction, affecting the intestinal function, resulting in indigestion. Treatment 1. Pay attention to the concentration of milk powder, if there are too many milk flaps, you can brew the milk thinner and then observe to see if there is any change in bowel movement. After eating or feeding, apply a hot compress or rub the baby’s abdomen clockwise to promote gastrointestinal motility. If the baby is pulling milk flaps is more serious and does not improve even after improving the diet, you need to go to the hospital in time for examination to clarify the specific causes and carry out targeted treatment; 2. During breastfeeding, the mother should pay attention to the diet and prohibit eating cold, spicy and stimulating foods such as seafood and alcohol.