Nasal Discharge Sneezing and Nosebleeds in Dogs (cont.)

Mouth Breathing

Dogs are nose breathers and usually do not breathe through their mouths except when panting. Mouth breathing indicates that both nasal air passages are blocked. In these dogs, no air is moving through the nose-only through the mouth. This may not be obvious until the dog becomes excited or begins to exercise.

This article is excerpted from “Dog Owner’s Home Veterinary Handbook” with permission from Wiley Publishing, Inc.