Author: Shawna Abrams, DVM, MPH

References Brooks W. Kennel Cough in Dogs. Veterinary Partner, vin.com. 2016. ‌Feldman E, Ettinger S. Textbook of Veterinary Internal Medicine. Vol 1. 6th ed. Elsevier Saunders; 207-210.,References Close,As with people, dogs can have an occasional runny nose, especially if they’re prone to seasonal allergies. A little bit of thin clear discharge once in a while may be normal, but if it’s an abnormal color (yellow, green, cloudy, or bloody) or there are other signs such as congestion, coughing, sneezing, a change in behavior, or trouble breathing, prompt medical attention is recommended. In younger dogs, the underlying cause is more likely to be congenital (an underlying issue they were born with), infectious, or related to toxicity. With older dogs, the cause is more likely to be related to a dental issue, cancer, or systemic disease.

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