Baby breastfeeding fart odor may be physiological factors, may also be indigestion or intestinal inflammation and other diseases caused by. 1. physiological factors: breastfeeding babies, if the mother ate too much spicy stimulating or unhealthy food, resulting in changes in the composition of the breast milk, the baby drank the mother’s milk will appear farting symptoms. 2. indigestion: children’s gastrointestinal function is weak, too much breastfeeding leads to digestive function, breast milk in the intestinal tract to accumulate too long, which leads to the baby fart odor. 3. intestinal inflammation: breastfeeding children suffering from enteritis and other diseases, resulting in some of the baby intestinal probiotics to reduce the intestinal flora imbalance, when harmful bacteria and fecal fermentation will produce foul-smelling gas. There are other reasons that cause babies to fart smelly gas from breastfeeding, it is recommended to bring your child to the hospital for examination in time to avoid delaying the condition.