What’s wrong with newborns who always have runny noses?

Newborns always have snot blocking the nose, the possible causes are physiological causes and upper respiratory tract infections, congenital posterior nostril atresia and other pathological causes.
1. Physiological reasons: the newborn’s nasal cavity is relatively narrow, the nasal mucosa is rich in blood vessels, so it is more susceptible to cold air and other factors, resulting in increased nasal secretions, the phenomenon of always blocking the nose with snot.
2. Pathological causes
(1) Upper respiratory tract infection: upper respiratory tract infection can cause fever, nasal congestion, runny nose and other symptoms in newborns.
(2) Congenital posterior atresia: it is a kind of congenital developmental abnormality due to genetic factors, which is manifested as nasal congestion, runny nose, breathing difficulties and so on.
Newborns always have snot blocking the nose, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.