Newborn fart odor may be a normal phenomenon, but also may be indigestion and other pathological phenomena. 1. Normal phenomenon: when breastfeeding, the mother often eat high protein, high fat food, because the milk protein content is too high, protein metabolism produces a bad smell, newborn fart odor symptoms. After the mother adjusts the diet structure, the phenomenon of fart odor will be improved. Or artificial feeding because cow’s milk and its formula contains more casein, the fart will have obvious protein decomposition product odor, at this time no special treatment. 2. indigestion: will also make the baby fart odor, this time need to pay attention to small meals, pay attention to the baby’s abdominal warmth, etc., if necessary, under the guidance of a doctor to use probiotics such as clostridium casei to regulate the intestinal flora, improve intestinal function. There are many reasons why newborns fart odor, parents should actively look for the cause of the disease, if necessary, you can go to the hospital to identify the cause of the improvement, in order to promote the normal growth and development of newborns.