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Why does my dog's nose run clear liquid during walks? Is it normal?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 6 months and 18 days old

My dogs nose sometimes runs and a clear watery liquid comes out. What is it? I notice it happens when I take him on walks but not always

1 Answer

Most Helpful Answer

Amber W

Answered By Amber W

Veterinarian, Certified Veterinary Acupuncturist

Published on September 9th, 2017

Hello and thanks for using Petco Pet Education Center, formerly Petcoach! It sounds to me like this may be normal. If the discharge from the nose is clear and it's only occurring during walks it's probably more related to a mild allergy or exposure to cooler air. As long as it's only happening rarely and the discharge is clear I wouldn't be concerned. If the discharge become frequent, becomes yellow/green or mucousy, or Ziggy develops any other signs of illness like coughing or sneezing I would have him evaluated by your veterinarian.
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