Why does my baby have a stuffy nose without other symptoms?

Nose breathers: Most babies are born as obligate nose breathers- meaning they automatically breathe through their nose. Their nasal passages are very small, so often any congestion in the nose make the breathing sound more turbulent. This often gives the parent the feeling that their infants nose is perpetually stuffy. Using saline drops and bulb suctioning and a humidifier might help if the symptoms persist.

Little noses: Little noses have very little space! even a small amount of mucus in the back of the nose and throat can cause congested breathing. This doesn't usually bother the baby nearly as much as it bothers the parents! try having the baby sleep with the head of the bed elevated and use nasal saline drops frequently to keep the mucus loose and thin.

Little noses: Lots of baby is folded into the womb.The short neck required to make them fit means their little nose will do extra work.The neck grows longer in the first months & baby will then drop the jaw to mouth breathe without tilting it back like newborns do to cry.Irritants like perfume & dust can make the nose swell inside and the mucous they make may rattle. Mouth breathing helps the stuffiness fade.