Lumps in cats

Lumps in cats

By
✔ MRCVS
LMV
MSc
Reviewed by Dr. Deborah Brown
✔ MRCVS
BSc
BVM&S
FHEA
Updated October 16, 2025
5 min read

What to do

Causes

When to worry

Prevention

Diagnosis

Home treatment

Vet treatment

Risk

Other causes

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Lumps in cats

Lumps in cats

By
✔ MRCVS
LMV
MSc
Reviewed by Dr. Deborah Brown
✔ MRCVS
BSc
BVM&S
FHEA
Updated October 16, 2025
5 min read

It is always stressful to find a lump on your cat, but there are many possible causes. Sadly, the more common ones are infections and tumours, and veterinary treatment will usually be required.

Lumps can happen due to infection, inflammation, an abnormal growth, fluid build-up, or an anatomical problem like a hernia. You can check a list of some common causes and read a brief explanation below.

What to do if you find a lump on your cat >What to do if you find a lump on your cat [What to do

Common causes of lumps in cats >Common causes of lumps in cats [Causes

When should I worry? What do cancerous lumps look like? >When should I worry? What do cancerous lumps look like? [When to worry

Can I prevent lumps on my cat? >Can I prevent lumps on my cat? [Prevention

What should I look out for if I find a lump on my cat? >What should I look out for if I find a lump on my cat? [Diagnosis

How can I help my cat with their lump? >How can I help my cat with their lump? [Home treatment

What is the vet treatment for lumps on cats? >What is the vet treatment for lumps on cats? [Vet treatment

Is my cat at higher risk of having lumps? >Is my cat at higher risk of having lumps? [Risk

Other causes of lumps in cats >Other causes of lumps in cats [Other causes

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