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Why does my dog have a red pimple-like bump under his armpit area?

Updated On September 23rd, 2025

Pet's info: Dog | Labradoodle | Male | neutered | 2 years and 3 months old | 80 lbs

My dog has a red pimple like bump on his side sort of under his right arm. He is a labradoodle what is this?

1 Answer

Most Helpful Answer

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Answered By Stacey Anstaett, DVM

Veterinarian

Published on July 23rd, 2018

Are you able to attach a picture? If you attempted that, it did not upload for us to see. :( That would be helpful. Based on your description, it may be a focal area of bacterial infection in the skin called pyoderma, it could be an inflamed hair follicle, or it could be some other type of mass. If you resubmit with a picture, can you let us know if its bothering him? Is he scratching or licking at it, etc, and how long has it been there? Thank you for asking Petco Pet Education Center, formerly Petcoach!

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