Stroke in Dogs (and FCE)

Signs of a Stroke in Dogs

The key feature of a stroke is how suddenly it happens. Signs often reach their worst within minutes to hours.^1,4 Swelling in the brain can make them worse for 24 to 72 hours. After that, they usually stabilize and start to improve.¹ Signs depend on the area hit:^4,3,2

• Cerebellum (the most common site in one study, 38%): wobbliness, high-stepping, a head tilt and flicking eyes
• Forebrain: circling, pacing, confusion, blindness on one side, weakness on one side, behavior change or a seizure
• Brainstem: loss of balance, weakness, dullness and other nerve problems

About a third of dogs in the 2025 study couldn't walk at first.⁴ Signs that disappear within 24 hours are called a transient ischemic attack (TIA), or "mini stroke."¹ We found no studies on whether strokes are painful for dogs.

Stroke or Vestibular Disease?

A sudden head tilt and loss of balance in an older dog is most often idiopathic vestibular disease, not a stroke.^11,12 But a stroke in the cerebellum causes the same signs: wobbliness, head tilt and flicking eyes.⁵ Seizures can also be confused with stroke.^13,4 Your vet will look for signs that point to the brain, such as weakness, poor paw placement or dullness. If these are present, MRI is the best test.^11,2 See vestibular disease in dogs and seizures in dogs.

Causes and Risk Factors

Many strokes have no cause found.² But studies find an underlying condition in about 40% to 50% of dogs:^4,13,6

• High blood pressure. See high blood pressure in dogs.
• Kidney disease, especially with protein in the urine
• Cushing's disease and a tendency for blood to clot too easily. See Cushing's disease in dogs.
• Hypothyroidism. See thyroid problems in dogs.
• Cancer, bleeding disorders or head injury, which can cause bleeding strokes

Strokes usually strike older dogs, with a median age of about 9.6 years, though they can happen at any age.⁴

Diagnosis and Treatment

MRI confirms a stroke, shows whether it's from a blockage or bleeding, and rules out tumors, inflammation and injury.^1,2 Your vet will then look for a cause. Tests may include:¹

• Blood pressure checks
• Blood and urine tests, including urine protein
• Clotting and hormone tests
• Chest X-rays and abdominal ultrasound
• A heart scan

There's no specific treatment to reverse a stroke in dogs. Clot-busting drugs used in people haven't been shown to work in dogs, and there's no evidence that steroids help.^2,1 Treatment is supportive:^1,14

• Fluids, oxygen if needed, and nursing care
• Treating the underlying cause, such as high blood pressure
• For dogs that can't walk, soft bedding, turning, bladder care and physical therapy

Recovery and Outlook

Most dogs with an ischemic stroke recover within several weeks with supportive care alone.^1,6 Movement often returns better than behavior changes.² The first days matter most. In a study of 22 dogs, 23% died within 30 days.¹⁵ In the larger 2025 study, 6.4% died or were put to sleep before going home.⁴ All 23 dogs in a study of cerebellar strokes went home within 10 days.⁵ Seizures after a stroke are uncommon, at 7.3% in one study.⁴ Finding and treating the cause helps prevent another stroke.^1,4

FCE: Stroke of the Spinal Cord

In fibrocartilaginous embolism (FCE), a tiny piece of disc material blocks a blood vessel in the spinal cord.^7,8 It mostly affects large and giant breeds, usually at 3 to 7 years. Miniature Schnauzers and Shetland Sheepdogs are also prone.^9,8 Typical features:^9,8,16,7

• Sudden weakness or paralysis, often while running, jumping or playing
• Often worse on one side
• The dog may yelp at the moment it happens, but the pain passes quickly
• Signs stop getting worse within about 12 to 24 hours

MRI shows the damaged area and rules out a slipped disc.⁸ There's no specific medicine; treatment is nursing care and physical rehabilitation.^9,16 Many dogs start improving within 5 to 14 days.⁹ They walk unaided after a median of about 11 days, with most recovery within about 4 months.¹⁶ Studies report that about two-thirds to over 90% recover, but many keep some weakness.^17,10 The outlook is poor if deep pain sensation is lost or there's no improvement within 2 weeks.^9,17 See also IVDD in dogs.

Frequently Asked Questions

How long can a dog live after a stroke?

Many live for years. Median survival in one large study was over a year to over two years.

Can a dog recover from a stroke on its own?

Many improve over weeks with supportive care, but every dog needs a vet to find the cause.

What can be mistaken for a stroke in dogs?

Vestibular disease, seizures, brain tumors and inflammation can look similar.

Can an old dog recover from a stroke?

Yes. Strokes mostly affect older dogs, and many recover well.

What is a mini stroke in a dog?

Stroke signs that clear within 24 hours, called a transient ischemic attack.