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My dog has a growing lump. Is it serious and when should I see a vet?

Updated On September 23rd, 2025

Pet's info: Dog | Australian Shepherd | Male | unneutered | 2 years old | 30 lbs

I would like to see if you know what this is and how I can help him please. We’ve been noticing it getting bigger these past few days but he’s had it for a long time but it never grew or changed colors. He has been licking it more recently but still doesn’t wince when we touch it. He has been panting more but nothing we seem is a big deal since he’s been playing outside more.

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1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on April 18th, 2019

In a dog Boston's age, this could be a benign tumor. Any suspicious lumps should be examined by the vet. 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 its cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Once the cause of the lump is diagnosed, the vet can discuss treatment options if needed. Give his vet a call to make him an appointment.

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