Cancer is more common in cats than many people realize. It’s one of the leading causes of death in cats, especially in older cats. Early detection can mean the difference between life and death. Unfortunately, the costs of testing and treatment are often very high, including surgery, chemotherapy, and long-term medication. This can be a significant financial burden for many owners. Cat insurance can help cover unexpected costs and ensure the best possible care. In this blog post, we explain what cancer in cats is, the symptoms to recognize, and what the treatment entails. This way, you can be well-prepared if your cat ever becomes ill.
What is cancer in cats?
Cancer in cats occurs when cells in the body begin to divide uncontrollably. This can lead to a tumor or growth. Some tumors are benign and grow slowly. Others are malignant and can spread to other parts of the body. Certain types of cancer are more common in cats, such as lymphoma (cancer of the lymph nodes), mammary gland tumors, squamous cell carcinoma (skin cancer), and mast cell tumors. The reason a cat develops cancer isn’t always clear. Sometimes age or heredity plays a role, but infections or environmental factors can also play a role. The sooner cancer is detected, the greater the chance that your cat can be treated.
Causes and risk factors
There are several causes and risk factors for cancer in cats. While there isn’t always a clear reason, these are known factors:
- Age: Older cats are more likely.
- Breed: Some breeds, such as Siamese, are at higher risk.
- Viruses: such as FeLV (feline leukemia virus).
- Sunlight: This can cause skin cancer, especially in white cats.
- Environment: Exposure to fumes or toxic substances.
Diet and heredity can also sometimes play a role, although less is known about this. It’s good to know if your cat is in a risk group so you can be extra alert to signs.

Symptoms of cancer in cats
Cancer in cats can cause various symptoms. Pay close attention to these signs:
- Lumps or swellings under the skin
- Weight loss without any apparent reason
- Poor appetite or not wanting to eat at all
- Listlessness or being less active
- Difficulty swallowing or breathing
- Bleeding or poorly healing wounds
- Excessive drinking or urination
Sometimes the symptoms are very vague at first. Therefore, it’s important to always consult a vet if you have any doubts. The sooner you act, the better the treatment options.
How is cancer diagnosed in cats?
If you suspect your cat is ill, take it to the vet as soon as possible. The vet will first thoroughly examine your cat and ask about its symptoms. Further tests are often performed, such as:
- Blood test to check overall health
- X-rays or ultrasounds to detect tumors
- Biopsy (removing a piece of tissue) to see if it is cancer
Sometimes multiple tests are needed to determine the cause. The sooner the diagnosis is made, the greater the chance that something can be done about it.
Treatment options
Cancer treatment in cats depends on the type of cancer and its progression. Possible treatments include:
- Surgery to remove the tumor
- Chemotherapy to fight cancer cells
- Radiation therapy for difficult-to-reach tumors
- Pain relief and supportive care if recovery is not possible
Not every cat can or needs treatment. Sometimes the focus is on a good quality of life, free from pain. Your veterinarian will discuss the options with you and what’s best for your cat.

Cost of treatment and why insurance is wise
Cancer treatment costs for cats can be substantial, ranging from hundreds to thousands of euros for tests, surgery, chemotherapy, and medication. Not all owners can afford these costs, sometimes forcing them to make difficult choices. Cat insurance can help. It often covers a significant portion of the costs, depending on the coverage you choose. This allows you to give your cat the best possible care without worrying about the bill. Therefore, taking out insurance is a smart choice to cover unexpected veterinary expenses.
Conclusion
Cancer in cats is a serious and unfortunately common disease. By paying close attention to the symptoms and seeing a veterinarian promptly, you increase the chances of successful treatment. The cost of diagnosis and care can be high, but with cat insurance, you’re not alone. This way, you can give your cat the best care without financial stress. Not sure if your cat needs insurance? Compare the best cat insurance policies now and protect not only your cat but also your wallet. This way, you’ll be prepared for whatever comes.


