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Is my dog's hard, black, pea-sized bump a cause for concern?

Updated On September 23rd, 2025

Pet's info: Dog | Beagle | Male | unneutered | 4 years old | 35 lbs

Dog has black pea size bump which I first thought was a flea. It is hard and has no fluid. Now it is still hard but it looked like it flattened a bit. Is this a cause of concern? I read about skin tags and found that those are soft, whereas my dog's bump is hard. Do I need to worry?

1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on November 11th, 2017

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 day!

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