Babies always have flatulence, there are several reasons: First, the baby’s digestive system is not mature. In infancy, the development of the baby’s digestive system is immature, coupled with lying down all day, food can easily accumulate in the baby’s stomach, which leads to flatulence. Second, the wrong way of feeding. Babies always have flatulence, to consider whether the feeding method is correct. Some moms, because of their inexperience, always wait until their babies are very hungry before feeding them. When the baby is too hungry, he or she will eat very fast and hard, which will easily suck the air into the stomach. In addition, when choosing a pacifier, artificial feeding mothers do not choose a pacifier with the right size hole according to the baby’s age in months. If the hole of the pacifier is too big, the baby will easily suck in the air and milk together, resulting in flatulence.