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My dog has a lip lump after playing. Is it a wart or injury?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 10 months and 25 days old | 42 lbs

My dog was playing all weekend with a new dog friend! He's got a lump that is just on his upper lip ( snout area) I'm assuming it's just from them playing because there is a clear cut directly in the center. What may this be from?

1 Answer

Most Helpful Answer

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Answered By Christie Long, DVM

Veterinarian, Certified Veterinary Acupuncturist

Published on December 18th, 2016

Certainly it could be due to play, and dogs like to play with their mouths, especially when they're young and they're trying to figure out appropriate play methods with other dogs. If it's a wart-like growth, it may be a canine papilloma. These often show up on the mouths and feet of young dogs, and they are contagious between dogs. You can go to Google and look up images of these, so that you can see if this is what you're seeing on your dog. Papillomas usually go away on their own in about 2 weeks. If the lesion is still there at that point, I would get it checked by your vet.

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