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My 6-month cat has a firm, painless lump on its hip. Is it a tumor?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Longhair | Male | neutered | 6 months and 15 days old | 8 lbs

My cat is a 6 month old domestic long haired cat and he has a small lump (about half the size of a marble) on his hip, on the outer side of his body, the lump has a trinagular shape, leading it to feel a bit like a cyst, but it is firm. He feels no Pain when I examine the area or push on it. Could this be a tumor?

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1 Answer

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Answered By Jessica Keay, DVM

Veterinarian

Published on November 16th, 2018

I am sorry to hear about yoru concern for Solomon! While it is rare for us to see tumors in a cat so young, it is possible to have this occur. I would not leap to that conclusion without further investigation however, as this could be something like a benign cyst, an abscess, a foreign body under the skin, or a granulomatous reaction to a previous vaccine. I would recommend having your vet examine the area. They may recommend an aspirate of the lump with a needle to help identify what is going on and guide their plan of treatment.

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