It is not good for babies to drink milk lying down, and you should correct bad milk drinking habits. Baby stomach volume is small, the swallowing reflex is not well developed, lying down to drink milk, may make the milk overflow, resulting in choking, spitting, milk flow into the ear is also easy to cause otitis media, affecting hearing; fall asleep while drinking milk is also easy to lead to the baby sleep with milk, affecting the development of teeth, resulting in dental caries, etc.; lying down to drink milk in the incorrect posture, easy to affect the development of facial muscles. Mom breastfeeding posture must be correct, forty-five degree angle, feeding to half, standing to the shoulder pat, to avoid milk reflux. If the baby has been accustomed to lying down to drink milk, the mother should help the baby to correct the bad habit of drinking milk.