Newborns fart stinks but not poop, not a normal situation, but belong to a relatively common phenomenon, may be related to indigestion, constipation and other factors, the specific analysis is as follows: 1. indigestion: because the gastrointestinal development of newborns is not perfect, so in the intake of too much protein will lead to indigestion, fart smell, bloating and other situations. 2. Constipation: If the breastfeeding newborns, parents did not pay attention to the usual eating habits, like to eat spicy and stimulating food, may lead to the newborns indirect absorption, the symptoms of constipation. Parents do not have to worry too much, if the newborn has farting, most are a relatively common phenomenon, if there is no poop, and no farting symptoms, may be related to other disease factors, such as intestinal obstruction.