Why is my dog's snout suddenly swollen after a walk, no injury?

Updated On September 23rd, 2025

My dog has swelling around her snout. It has just begin this evening after she took a walk. We noticed it on the right side of her snout and has spread to the top and is now swelling on the left side of her snout. She keeps licking at the area. We have noticed no puncture marks or any indication of a wound causing the inflammation. Her teeth appear to be normal and healthy. Can you tell us what else might cause this?

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3 Answers

Most Helpful Answer

Answered By Dr. Melanie, BVSc MS 102

Veterinarian

Published on October 9th, 2019

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question. This could be an allergic reaction is there is no sign of trauma. The concern here is that the swelling is spreading, and it could get big enough to obstruct her breathing. I think it's best to have her seen by a vet now to get this treated. I hope this helps.

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Why is my dog's snout suddenly swollen after a walk, no injury?

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