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My dog has a white growth on his tongue. What is it? Is it contagious?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 6 months and 3 days old | 40 lbs

My dog has a white growth on the side of his tongue. It just appeared a few days ago. What is it? How long will it stay? Is he ok to play with other dogs?

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2 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on November 24th, 2019

This could be a canine oral papilloma. I would have Nigel seen by a vet to have this diagnosed and treated. You need to keep him away from other dogs for now, as they are contagious. Typically these do not need treatment, and can take 1-5 months to go away on their own.

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on February 12th, 2018

    Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck!

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