If a newborn baby sneezes all the time, whether it is a cold or not needs to be analyzed according to the specific situation. First of all, if a newborn sneezes and has a stuffy nose, a runny nose or even a fever or cough, and also has a history of infection, cold and cross-infection, it is often due to a cold that causes the sneezing. This condition in newborns is usually of relatively short duration, the majority within a week. Secondly, it is caused by the sensitive mucous membrane of the nasal cavity of newborns, which is also rich in blood vessels. If a newborn inhales cold air or a very pungent smell, the newborn may also sneeze. In addition to sneezing all the time, newborns are in relatively good spirits and have no obvious nasal congestion or other symptoms such as fever or cough.