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What is this dark spot on my male cat's nipple? Should I worry?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Male | neutered | 18 lbs

Hi! My 9 year old male cat has a dark spot on one of his nipples (the actual nipple is partially dark because of the spot, not dark spots around the areola). Do you know what this is? Picture is attached. Other info: he is overweight, he is mostly indoor but goes outdoors to lay in the sun occasionally).

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1 Answer

Most Helpful Answer

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Answered By Megan, DVM, CVA

Veterinarian

Published on June 3rd, 2018

This is likely just a pigment change but of course I cannot say for sure with just a picture. I would watch it closely. If it starts to get larger or becomes ulcerated, I would have it examined. Or if you are just worried, I would have your vet take a peek at it. Your vet should be able to determine whether it needs to be biopsied or removed. I hope this helps!

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