Categories: Cat Health

Weird Lump on my Cat’s Cheek

by Adoria (Canada)

There is a strange golf ball sized lump on my cat’s right, cheek, we have no clue what it is or how it might have happened, I have been researching on the web and so far have found nothing really… =(


Hi Adoria…. thanks for visiting. I’ll simply refer to the Cat Owner’s Home Veterinary Handbook, page 167, Lumps and Bumps on or Beneath the Skin.

These lumps are called tumors. Tumor means a swelling. It could be benign or cancerous. Benign means non-cancerous.


– slow growth
– surrounded by a capsule
– non-invasive
– does not spread

Test to see if it is benign requires removal and examination under microscope. Obviously a vet’s visit.


– usually enlarge quickly over several weeks or months (this must be a diagnostic tool)
– not surrounded by a capsule
– infiltrate other areas
– might bleed and ulcerate
– might be attached to bone

This excellent book then says (my words) in italics:

Unexplained lumps etc. should be checked by your veterinarian

This is definitely a case for a vet to check this out. The fact that the cat is not in discomfort (it seems) does not mean that it isn’t cancer.

Please have it checked out asap.

Another possibility is a sebaceous cyst, a benign tumor that comes from glands beneath the skin.

A further possibility in referring to my own experiences is that it might be an abscess. This is a bacterial infection under the skin that causes a build up of puss. They can be large and quite firm despite being liquid. This will cause discomfort. Once again a vet visit is demanded asap.

This is not a complete list of possibilities.


Comments for
Weird Lump on my Cat’s Cheek

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Nov 20, 2011 To Adoria
by: Ruth

How is your cat ?
I hope the vet didn’t find anything too serious and that he is much better now.

Nov 17, 2011 See a vet urgently
by: Ruth

Please if you haven’t already, take your cat to the vets urgently.
There is no way anyone can diagnose the lump without seeing it and as you’ve already been told, there are many possibilities it could be.
If it came up very suddenly it is most likely an abscess from a bad tooth or a bite on the cheek from another cat. It will possibly burst and relieve the cat’s pain but must still be cleaned and the cat treated with antibiotics or poison could set in.
(Retired vet nurse)

Nov 17, 2011 Another possibility
by: Ruth (Monty’s Mom)

It could be a blocked salivary gland. There are a couple of different ducts through which saliva enters the mouth. If one got blocked the body would of course continue to produce saliva and you could end up with a large lump in a short time, which is what I am assuming happened or you’d have had him to the vet by now. If I’m right them I’m guessing it would start to get pretty painful. Cats hide their pain very well. They would need to be stoic in the wild so as not to appear an easy mark to predators. I’d get to the vet ASAP. Don’t delay because you fear to hear bad news at the vet. This could be something very minor, but it still should be looked at before your cat starts refusing food and water due to the discomfort.

Nov 17, 2011 Absolutely gobsmacked!
by: Grahame


There are any number of growths which might occur on a cat’s cheek, dental gums, mouth, neck,and elsewhere. They can be difficult to diagnose and all require specialist veterinary assessment and care.

I am astounded that you have let it grow to such size and, instead of veterinary care, you, with no specialist knowledge or training, try to assume the role of cat doctor. If you had a growth that large on your own cheek, would you have attempted to self-diagnose over the Internet? Would you have let it grow to such size without any intervention? I hope that you would have seen your personal physician. Your cat deserves no less, and probably more, inasmuich as you can book a visit to your physician for yourself, but your cat must rely on you, its caretaker, to look after its health and treatment. Whether formalised, or implicit, you have a contract with your cat which entails a duty of care.

The urgency of my remarks reflects my deep concern for the welfare of domestic cat companion animals.

Michael Broad

Hi, I'm a 71-year-old retired solicitor (attorney in the US). Before qualifying I worked in many jobs including professional photography. I have a girlfriend, Michelle. I love nature, cats and all animals. I am concerned about their welfare.

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