Hypertension in cats – signs and when to see a vet

Updated 2026-09-30 · 1 sources

Based on: International Cat Care (iCatCare)

Book a vet visit

Book a vet appointment if you think your cat has this – a vet needs to confirm it and plan the treatment. Hypertension is high blood pressure in cats.

What you can do now

  1. Contact your vet.
  2. Note when it started, how often it happens and what else you see.
  3. Take a photo or short video to show the vet.
  4. Let your cat rest somewhere calm.
  5. Do not wait if it gets worse.

Don't

  • Do not give any human medicine.
  • Do not wait if it gets worse.

What it is

Hypertension is the medical term for high blood pressure.[1] It is a common condition in senior cats.[1] Feline hypertension is often seen as a complication of underlying conditions such as chronic kidney disease and hyperthyroidism.[1]

Signs

  • Depression
  • Lethargy or tiredness
  • Becoming withdrawn
  • Bumping into objects
  • Changes inside the eye, such as bleeding
  • Blindness

Causes and risk factors

  • Senior age
  • Chronic kidney disease
  • Hyperthyroidism

How a vet finds out

  • A physical examination
  • Blood pressure measurement
  • Blood tests
  • An eye examination

What the experts say

“Depression ; Lethargy/tiredness ; Becoming withdrawn ; Bumping into objects ; Changes inside the eye e.g. bleeding ; Blindness”

— International Cat Care (iCatCare) [1]
If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

OkPaw asks a few quick questions about your pet and tells you in 30 seconds whether it can wait. Free on Google Play for Android.

Get it on Google Play

OkPaw is on Android now – an iPhone version is on its way.

Common questions

What is hypertension in cats?

Hypertension is the medical term for high blood pressure.[1]

What signs can hypertension cause?

Signs can include depression, tiredness, becoming withdrawn, bumping into objects, changes inside the eye such as bleeding, and blindness.[1]

How does a vet check for hypertension?

A vet can measure blood pressure with an inflatable cuff around your cat’s leg or tail, examine the eyes and take a blood sample to test for underlying disease.[1]

Sources

  1. International Cat Care (iCatCare)

How this page was made: written with the help of AI from the sources below, then checked claim by claim against those sources. Urgency levels follow OkPaw’s fixed safety rules. It is guidance, not a diagnosis. How we write our pages

Other conditions in cats