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Lumps & Bumps on Dogs & Cats: Should You Worry?

Dr Katie Davison

Reviewed by Dr Katie DavisonBVMS MRCVS - RCVS Recognised Advanced Veterinarian

Finding a new lump on your pet is unsettling. The good news is that many lumps are harmless - but you genuinely can't tell which is which just by looking or feeling, and that's the whole point of getting them checked.

Here's what lumps can be, which ones warrant a prompt look, and how we find out what a lump actually is.

What a lump might be

  • Fatty lumps (lipomas) - common and usually harmless
  • Cysts, warts and abscesses
  • Insect bites or reactions, which come up quickly and often settle
  • Skin tumours - some benign, some not

Get it checked sooner if the lump…

  • Is growing quickly, or has changed in size, shape or colour
  • Is firm, fixed to deeper tissue, or ulcerated
  • Is bothering your pet - sore, itchy, or being licked
  • Appears alongside weight loss or your pet being off-colour

How we find out what it is

The only reliable way to know what a lump is, is to test it. Often we can take a quick, minimally-invasive sample (a fine-needle aspirate) and look at the cells - sometimes in-house - to get an answer without surgery.

If a lump does need removing, our surgical team can take care of that and, where needed, send it away for a definitive diagnosis. The key message: don't 'watch and wait' on a lump you're unsure about. A quick check on 07 870 2696 gives you peace of mind, and catches the occasional serious lump while it's still easy to deal with.

Common questions

My dog has a soft lump that's been there ages - is it fine?
It may well be a harmless fatty lump, but the only way to be sure is a quick test. We'd still recommend having any lump checked, and keeping an eye on whether it changes.
Do all lumps need to be removed?
No. Plenty of lumps are harmless and can simply be monitored. Testing tells us which ones can be left alone and which are worth removing - so you're not putting your pet through surgery they don't need.

Still have a question?

Our team is happy to help - call 07 870 2696 or send us a message.