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My dog's skin tag grew quickly and is now huge. Is it a tumor?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Female | spayed | 12 years and 6 months old | 70 lbs

My dog has growth that started as a skin tag so vet said but grown huge last few weeks is this a tumour

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2 Answers

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Answered By Claudia Fioravanti

Veterinarian

Published on October 26th, 2017

Yes, it is a tumour. I would have it rechecked and have it sampled to see what kind of tumour it is. All skin lumps are tumours, but some are completely harmless, some can spread locally, others can spread to different parts of the body. A small test, such as a fine needle aspirate, might give you more of an idea. Good luck !

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on January 17th, 2017

    Great question! Yes, there is a test that can be done. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of it's cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. I would have your dog seen by a vet to have a fine needle aspirate done on it to diagnose if it's a skin tag or something else.

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