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My 14-year-old cat has a painful, pimple-like lump on her side?

Updated On September 23rd, 2025

Pet's info: Cat | Siberian | Female | spayed | 14 years old | 10 lbs

My 14-year-old Female Siberian Forest Cat has an abnormal growth on her left side, close to her teet line. She doesn't like me touching it or looking at it, so I assume it causes her discomfort. It is a raised, flesh-toned lump with reddened pimple-like bumps around and on it. It's about a centimeter long. She was obese for most of her life, but she has dieted down to a healthy weight now. She's far more active now at 14 than she was at 2. She eats, drinks, and uses the litterbox regularly.

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1 Answer

Most Helpful Answer

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Answered By Oneal Bogan, DVM

Veterinarian

Published on November 12th, 2017

Hi there, The bump on Skitt could be a few different things. It could be a mammary tumor, a benign skin mass, or a sebacous cyst (clogged oil gland). Any type of bump should be tested by your vet to find out what it is. This entails them sticking a small needle in the bump and collecting some cells. They then look at these cells under the microscope to provide a diagnosis and then recommend if the bump needs to be removed or not. I hope that is helpful for you and Skitt. Thanks for using Pet Coach.

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