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My dog has a new lump on her side and leg. What should I do?

Updated On September 23rd, 2025

Pet's info: Dog | Jack Russell Terrier | Female | spayed | 14 years and 4 months old | 12 lbs

My dog has a lump on her side grey round the edge pink in the middle one is now appearing on her back leg

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1 Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on June 11th, 2018

The picture you posted was a little blurry, so it was difficult to evaluate, but in general we usually can't tell anything about a mass by just looking at it. Your vet can perform a simple test called a fine needle aspirate where they use a small needle to collect some cells from the mass, then look at them under the microscope. They may even need to send the cells to the lab for a pathologist to examine them, so we know what the mass is. If it is benign, you might not need to do anything about the mass at all, but if they see cells that worry them, they might recommend removing the mass. Good luck! I hope that was helpful. Thanks for using Petco Pet Education Center, formerly Petcoach.

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