Babies farting all the time is considered to be caused by food factors, indigestion, intestinal inflammation and so on. 1. Food factors: mostly seen in infants who start to add complementary foods, may be too much to eat gas-producing foods, such as onions, potatoes, etc., which will lead to excessive gas production in the gastrointestinal tract, thus causing farting. 2. Indigestion: Since infants are small and their gastrointestinal function is not well developed, their digestive function will be weaker. Once they are not eating properly, they will be prone to indigestion, which will lead to farting and loss of appetite. 3. Intestinal inflammation: for example, acute enteritis caused by unclean diet, faster intestinal peristalsis, intestinal flora imbalance, increase in harmful bacteria and decrease in beneficial bacteria, which will produce a large amount of gas, leading to farting. Babies always fart, if accompanied by other symptoms, such as abdominal pain, diarrhea, should be timely to the hospital, identify the causes and cooperate with the doctor treatment.