Newborn babies often have their stomachs grumbling when they eat milk because their gastrointestinal function is not yet perfect. The reasons for this may be: 1, gastrointestinal function is not perfect, resulting in the newborn’s tummy grumbling when eating milk. 2, may be a cold tummy, newborn babies are often wrapped up in the arms of adults, often during the holding clothes will run up, so that the baby’s tummy exposed, and also at night when the baby sleeps will kick the quilt situation, but also easy to make the tummy cold, resulting in the baby’s tummy bloating, will also appear 3, newborns may also be swallowing too much air, baby bottle feeding, sucking if too fast, easy to inhale too much air, pacifier hole size improper plus bottle tilt, air will also be from the pacifier gap for baby inhalation, as well as excessive crying baby is also easy to cause flatulence, will appear tummy gurgling situation.