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My 1.5-year-old dog has a growing lump on his shoulder. What is it?

Updated On September 23rd, 2025

1.5 yr old dog, found a flat feeling lump on shoulder last month, seems to be getting larger. What is this lump likely to be?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on January 7th, 2017

In a young dog, this lump is likely a cyst, a lipoma, or benign tumor. Any suspicious lump should be examined by a vet. The vet can do a fine needle aspirate on it. To do this, the vet sticks a needle into the lump to get a sample of its cells, and examines them under the microscope. It's relatively quick to do, and usually painless for the dog. Given that it's been growing larger, I would have your dog examined by a vet tomorrow.

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