Finding out that your pet has cancer can be quite a blow. But it’s important to remember that although cancer is a terminal illness, it’s not an automatic death sentence. You still have time. With support from your vet, your pet can enjoy a better quality of life until the end of their days.
Treatment Options for Pets with Cancer
Sadly, cancer is not an uncommon diagnosis for pets. Cats are most prone to lymphoma, skin, and mammary cancers, and lymphoma is very common in dogs as well. To diagnose cancer in pets, we take blood samples as well as a biopsy of the suspected tumor. Testing those samples in the lab will tell us whether the tumor is benign (harmless) or cancerous.
If the diagnosis is cancer, your pet may need further tests to find out how far it has spread and what stage the disease is in. From that point, we’ll discuss treatment options, medications, and what to expect over the next months or years of your pet’s life.
Types of Cancer Treatments for Pets
- Surgery to physically remove a tumor is a common first step in cancer treatment.
- Radiation can be used to shrink tumors that can’t be removed surgically.
- Chemotherapy is a highly specialized medication that targets cancer cells. Your pet may experience some side effects, but animals often respond to chemotherapy better than people do.
- Palliative or comfort care may be the best choice when your focus is on your pet’s quality of life over strenuous efforts at achieving a cure. Your pet will receive pain management while you support them with good nutrition and plenty of rest.
Does a Cancer Diagnosis Mean My Pet Has to Be Put Down?
One of the scariest questions pet owners have about a cancer diagnosis is whether their pet will need to be put to sleep.
Many pets do well with cancer treatments and enjoy happy, comfortable lives. Still, there are some cases where the disease progression or the treatments are affecting your pet’s quality of life. When your cat or dog is clearly suffering and in distress, and treatment can’t help any longer, euthanasia may be the most compassionate action you can take.
Keep the lines of communication open with your vet and don’t be afraid to have honest conversations about your pet’s prognosis and quality of life. These can be hard talks and tough decisions. You might even be afraid to ask your vet directly. But rest assured, your vet knows this is a frightening time for you and will do everything possible to support you when decisions need to be made.
Fear-Free Veterinary Care in Gilbert, Arizona
If you ever notice changes in your pet’s behavior, such as a loss of appetite, lethargy, or unexplained weight loss, or you see or feel lumps under their skin, schedule a visit with Anasazi Animal Clinic.
While there are a number of other possible causes for health concerns like these, we want you to do all we can to put your mind at ease through attentive and thorough testing and evaluation. Early action matters, especially when there’s a possibility of cancer, and we are here to support you and your pet.
As vets, we are as eager as you are to give your pet a long, healthy life. And even when a cancer diagnosis makes that difficult, we are still committed to providing the best care possible, every single day of their life. Helping a pet with a cancer diagnosis isn’t something you need to navigate alone. You can count on us for advice and guidance every step of the way.
Photo by Maurice DT on Unsplash used with permission under license for commercial use 06/09/2026.