You’re giving your dog a belly rub when suddenly you feel something that wasn’t there before.
A bump. A lump. A small mass beneath the skin.
It’s natural to worry, but here’s the most important thing to know: not every lump on a dog is cancerous—but every new or changing lump is worth discussing with your vet.
What Causes Lumps and Bumps on Dogs?
Dogs can develop lumps for many different reasons. Some are completely harmless, while others need treatment.
A lump could be:
- A fatty lump (lipoma)
- A cyst
- Inflammation or infection
- An abscess
- A reaction to an insect bite or injury
- A benign growth
- A malignant tumour
Lipomas, for example, are common benign fatty tumours in dogs and are often soft, round, slow-growing and movable. However, other types of masses can sometimes feel similar, which is why appearance and touch alone cannot provide a reliable diagnosis.
When Should I Take My Dog to the Vet for a Lump?
A good rule is simple:
If you discover a new lump on your dog, have your vet check it.
You should be particularly prompt if the lump:
- Is growing or changing quickly
- Becomes hard or changes texture
- Bleeds, ulcerates or becomes irritated
- Appears painful
- Causes your dog to lick or scratch the area
- Interferes with movement
Veterinary guidance recommends having new and changing masses assessed rather than assuming they’re harmless.
Does a Lump Mean My Dog Has Cancer?
No. A lump does not automatically mean cancer.
Many lumps in dogs are benign. The problem is that some malignant tumours can resemble harmless growths. Mast cell tumours, for example, can have many different appearances and may even resemble a lipoma beneath the skin.
That’s why getting a professional diagnosis matters.
How Does a Vet Check a Lump on a Dog?
Your vet will usually begin by examining and feeling the lump.
Depending on what they find, they may recommend a fine needle aspirate (FNA). This involves using a small needle to collect cells from the mass so they can be examined under a microscope.
In some cases, a biopsy or further diagnostic testing may be needed to determine exactly what the lump is.
Don’t Panic. Do Get It Checked.
Finding a lump on your dog can be frightening, but try not to jump immediately to the worst conclusion.
Instead, let your vet investigate it.
Early veterinary assessment can identify harmless lumps that simply need monitoring—and help ensure that conditions requiring treatment are addressed as soon as possible.
And because unexpected consultations, diagnostics and treatment can become costly, having pet insurance in place before health problems arise can help you prepare financially for the unexpected.
At Cat&Dogsure, we believe great pet care starts with paying attention to the little things—even the little bumps.
If in doubt, get it checked. 💚
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T’s & C’s apply. Underwritten by Renasa Insurance Company Limited, a licensed Non-Life Insurer and FSP. (FSP Licence 15491)
Insurer: Renasa Insurance Company Limited, a licensed Non-Life Insurer and FSP. (FSP Licence 15491) is an Authorised Financial Services Provider and licensed non-life Insurer.