The medical name for a runny nose is "Rhinorrhea"
Rihnorrea is normally referred to as having a runny nose. This could be caused by allergies, broken or injured nose, sinus cancer, respiratory infections amongst other causes. People who suffer from rihnorrea could also experience nosebleeds, and other symptoms that are related to the common cold. Usually rhinorrea doesn’t require any direct treatment.
Did you know that brain fluid, or cerebrospinal fluid, could also lead to runny nose. The most common cause is blunt trauma. The leak is a result of a laceration in the brain to the area where the fluid is located.