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My dog has a hard lump under her skin. Is it serious or benign?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | 95 lbs

my dog has an under the skin lump and it is hard what it is?

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2 Answers

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on January 16th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on June 11th, 2020

    Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Bella, and thank you for providing pictures. They are very helpful. This looks like growth, possibly benign, but I can't say for certain without seeing her in person. 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 her vet a call to make her an appointment. I hope this helps!

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