Whether nasal congestion is normal in newborns requires clarification of the cause of nasal congestion, and if it is caused by physiological factors, it is a normal manifestation. However, if it is triggered by pathological factors, such as congenital malformation of nasal development, cold, nasal polyps, etc., it is an abnormal performance. I. Normal performance: newborns have narrow nasal cavity, rich nasal mucosa blood vessels, if stimulated by cold and warm air, there may be increased secretions, at this time, nasal congestion is a normal performance. Parents can use sterilized cotton swabs to gently turn near the nostrils to remove the secretions near the nostrils and relieve the symptoms of nasal congestion. Usually pay attention to adjust the room temperature and humidity appropriate to reduce cold and warm air stimulation, so that the nasal cavity of newborns to keep open, you can use the physiological seawater available for newborns to spray nose. Second, abnormal performance: 1, congenital nasal development malformation: newborn nasal congestion may be caused by congenital nasal development malformation, parents will find that the newborn has poor breathing, nasal congestion and other symptoms; 2, cold: newborn resistance is insufficient, easy to occur due to viruses, bacteria and other pathogens infection and cold, at this time, inflammation stimulates the nasal mucosa, resulting in nasal congestion, edema, as well as increased secretions, sticky, thus 3, nasal polyps: newborns with nasal polyps, polyps may block the nasal cavity, which is not conducive to the normal breathing of newborns, resulting in nasal congestion symptoms; 4, nasal foreign body: Although newborns are not likely to stuff foreign objects into the nose, but if there are more than one baby at home, you need to be alert to the older baby may be playing with the newborn, accidentally stuffing small things into the nasal cavity of newborns, resulting in nasal congestion. Thus, nasal congestion occurs.