First month free with code FREEMONTH, then US $9.99/month. Cancel anytime.

High Blood Pressure in Cats

NYP TeleVet Team
October 15, 2026
Veterinarian examining cute cat in clinic

High blood pressure, or hypertension, is common in older cats. It’s often called a “silent” condition because many cats show no signs until it damages important organs. One of the most dramatic signs is sudden blindness. The good news is that blood pressure is easy to check, and hypertension can usually be managed well with treatment.

What causes high blood pressure in cats?

In most cats, hypertension is caused by another health problem. The most common are:

Some cats have high blood pressure with no underlying cause found.

Which organs are affected?

High blood pressure can damage organs with many small blood vessels, including:

The eyes

The kidneys

Hypertension can worsen kidney disease, and kidney disease can worsen blood pressure.

The heart

The heart works harder and its muscle may thicken.

The brain

Cat dog puppy kitten stethoscope - Allergies in Cats

Symptoms of hypertension in cats

Many cats have no obvious signs at all. Our article on what to expect at every stage of your cat’s life explains changes in senior cats.

How is blood pressure measured?

Vets measure blood pressure in cats much like in people, with a small cuff placed on a leg or the tail. The test is painless. Because cats can get stressed at the clinic, vets usually take several readings in a quiet room.

Many vets recommend checking blood pressure at least once a year in cats over about 7 to 10 years old, and more often in cats with kidney disease or hyperthyroidism.

Veterinarian examining cute cat in clinic

How is it treated?

With treatment, some cats with retinal detachment regain part of their vision, especially when treated quickly.

When is it an emergency?

Get urgent care if your cat suddenly can’t see, has blood in the eye, has a seizure or seems very disoriented. Our guide to pet emergency signs explains other urgent symptoms.

How to help your senior cat

Frequently asked questions

Can high blood pressure in cats be cured?

It can’t usually be cured, but it’s often well controlled with daily medicine.

Can stress cause high blood pressure readings?

Yes. Stress can raise readings at the vet, so vets take several measurements.

Senior cat questions? Ask a vet

Talk to a licensed vet 24/7, even on holidays, by chat, voice call or video call. Your first month is free with code FREEMONTH, then US $9.99/month, at NYPTeleVet.com. One membership covers up to 6 pets, and you can cancel anytime.

Our vets can’t prescribe medication, but they’ll tell you what’s likely needed and when an in-person visit is the next step.

Sources

⚠️ Disclaimer: NYP TeleVet is not a substitute for professional veterinary care. For emergencies (trouble breathing, seizures, severe bleeding, collapse), go to the nearest veterinary clinic immediately.

🚫 Currently not available in Hong Kong.

Not sure what to do next? Ask a vet now.

  • First month free
  • Then US $9.99/month
  • Cancel anytime
Start Free Month Not available in Hong Kong. Vets cannot prescribe medication.

© 2026 NYP TeleVet. All rights reserved.

Chat with a vet nowFirst month free, then US $9.99/month