Cancer in cats

By
✔ MRCVS
BSc
BVM&S
FHEA
Updated October 16, 2025
8 min read

Overview

Symptoms

Risk

Diagnosis

Vet treatment

Home treatment

Prevention

When to worry

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Cancer in cats

By
✔ MRCVS
BSc
BVM&S
FHEA
Updated October 16, 2025
8 min read

Cancer is a serious illness in cats as well as humans. Approximately 1 in 4 cats will develop cancer at some time in their lives. This figure rises to 1 in 2 for cats over 10 years old. It’s the leading cause of death in adult cats.

Cancer is an illness that touches many of our lives. Half of us will develop cancer during our lifetime. Around 1000 new cases are diagnosed every day in human medicine. And every day a cat owner will also face the anguish of a cancer diagnosis for their beloved companion. Just as for humans, outlook depends on the type of cancer, how early it is identified and on individual response to treatment. Always talk to a vet if you are worried your cat may have cancer

Cancer in cats: what is it? >Cancer in cats: what is it? [Overview

What are the warning signs of cancer in cats? >What are the warning signs of cancer in cats? [Symptoms

Which cats are most likely to get cancer? >Which cats are most likely to get cancer? [Risk

How do vets diagnose cancer in cats? >How do vets diagnose cancer in cats? [Diagnosis

How can vets treat cats with cancer? >How can vets treat cats with cancer? [Vet treatment

How to care for a cat with cancer at home >How to care for a cat with cancer at home [Home treatment

Can we prevent cancer in cats? >Can we prevent cancer in cats? [Prevention

When to worry about your cat with cancer >When to worry about your cat with cancer [When to worry

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