Farting a lot during transfer is not normal and may be caused by indigestion. Switching refers to replacing the infant’s milk powder with another milk powder, which takes about a week and must be done when the infant is in good health. Babies have poor gastrointestinal function and will have a process of adaptation to the new formula during the changeover. If farting occurs during the changeover period, it may be due to the fact that the infant’s intestinal flora cannot adapt to the new milk formula, resulting in an imbalance of the flora, which may lead to symptoms of indigestion. Parents can gently massage the baby’s abdomen to help intestinal digestion, and pay attention to abdominal warmth, feed the baby more water, slow down the speed of the change of milk powder, and mix the old and new milk powder to alleviate the symptoms of indigestion.