The reasons why babies fart while breastfeeding are divided into physiological and pathological factors. Physiological factors are commonly found in wrong breastfeeding posture, increased gastrointestinal motility, etc. Pathological factors are found in indigestion, gastroenteritis, etc. The details are analyzed as follows: 1. Physiological factors: wrong breastfeeding posture, leading to inhalation of too much air, causing an increase in the amount of gas in the intestinal tract, causing bloating, farting during breastfeeding; gastrointestinal peristalsis, gastrointestinal gastrointestinal secretion of enzymes increases during breastfeeding, making gastrointestinal peristalsis increase, which can also cause farting while the baby is eating the milk. 2. Pathological factors: indigestion or gastroenteritis and other conditions, the baby is often accompanied by abdominal distension, increased intestinal sounds, increased intestinal peristalsis, usually there is also a thin stool, stool frequency increased and so on. Baby farting while eating milk, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.