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My old cat has a purple lump near her nipple. Is it mammary cancer?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | unspayed | 8 years and 11 months old | 9 lbs

Hi my female cat is about 9-10 years of age and recently I've seen a purple and pus looking lump in her stomach region, it looks like it was her nipple before. I suspect it's a tumour possibly a mammary cancer, but I am not sure. Please help!

1 Answer

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on February 6th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Tashi! If the mass is associated with a nipple it is likely a mass in the mammary gland. Sadly about 85% of masses in cat mammary glands tend to be cancerous. I highly recommend a vet visit so they can examine Tashi. You the can discuss removing the mass for biopsy. I hope this helps and I wish Tashi the best!

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