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My cat has a sudden, painful lump on its back. What should I do?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered | 8 lbs

There's a lump on the back of my cat and it wasn't there yesterday. Whenever its touched he cries out in pain.

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1 Answer

Most Helpful Answer

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Answered By Sara Farmer, DVM

Veterinarian

Published on April 24th, 2019

I wonder if this lump is potentially an abscess. I would recommend having a veterinarian examine Loki sooner rather than later since he is in pain. They might recommend a fine needle aspirate which is a procedure where a small needle is used to take a sample to examine microscopically.

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