It is normal for newborns to have boogers, but if the newborn’s nasal secretion is more accompanied by other discomforts, it may be due to colds, rhinitis and other pathological factors. 1. Normal phenomenon: after the birth of newborns, their nasal cavity can naturally come into contact with the relatively dry external environment, such as dust in the air, fine particles and other substances, these substances are inhaled into the nasal cavity, contact with the nasal secretion will form boogers, which is a normal phenomenon. 2. Colds: when newborns are infected by bacteria or viruses, their nasal secretions will increase, which can be accompanied by sneezing, nasal congestion and other phenomena, if the secretions can not be discharged in a timely manner, boogers will be formed. 3. Rhinitis: when newborns have nasal inflammation, their nasal secretions will also increase, which can be accompanied by symptoms such as nasal itching, sneezing, nasal congestion, etc. If the secretions can not be discharged in time, boogers will also be formed. In these cases, if the boogers do not affect the smooth breathing, there is no need for special treatment, if the boogers are more, hard, affecting the normal breathing of newborns, can be used to wipe gently with a wet cotton swab, such as can not be relieved to the hospital in time to see a doctor.