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My dog has a new lump on his leg. When should I see a vet?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | neutered | 13 lbs

Unknown lump found on my dog’s leg

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2 Answers

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on June 20th, 2019

This could just be a benign tumor, but without seeing Pluto in person, I can't say for certain. 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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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on April 26th, 2020

    Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Cooper Dean. In a dog his age, it's unlikely this growth is malignant, it's likely benign. 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. I hope this helps!

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