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My dog has a lump under his skin on his chest. Should I see a vet?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 9 years and 9 months old | 13 lbs

Hi Petco Pet Education Center! My dog has medium sized lump under his skin, right by his chest and rib cage. Is this something I should be concerned about?

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1 Answer

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Answered By Linda G, MS, DVM

Veterinarian

Published on July 11th, 2019

Hello. This is probably a benign neoplasia called a lipoma, but any lump, bump or nodule that pops up, especially on an older dog, should be brought to your veterinarians attention as quickly as possible. Sometimes we will do a very simple needle aspirate to look for any unusual cells under the microscope, or your veterinarian may just elect to watch things. But it should at least be evaluated. Hope all is well & thanks for using Petco Pet Education Center, formerly Petcoach.

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