Updated September 25, 2026. Fact-checked against veterinary sources; review by a licensed veterinarian is in progress. See our editorial policy.
Quick answer: Vestibular disease affects the balance system, causing a sudden head tilt, stumbling or falling, rapid eye flicking (nystagmus), circling, and often nausea. In older dogs, the most common form is idiopathic (“old dog”) vestibular disease, which looks frightening but usually improves within 72 hours and largely resolves in 2–3 weeks. Other causes include middle or inner ear infections, low thyroid, certain drugs, and problems in the brain, so every dog with these signs should see a vet promptly.
Signs
- Sudden head tilt
- Loss of balance, leaning, falling, or rolling to one side
- Eyes flicking side to side or up and down
- Circling in one direction
- Nausea, drooling, vomiting, or not wanting to eat
- Reluctance to stand or walk
Causes
- Idiopathic (geriatric) vestibular disease: no identifiable cause, most common in older dogs, and usually improves on its own.
- Middle or inner ear infection (otitis media or interna)
- Hypothyroidism
- Medication side effects, including high doses or long courses of metronidazole, and some ear cleaners or drugs placed in an ear with a ruptured eardrum
- “Central” causes in the brain: stroke, inflammation, or tumors
Is it a stroke?
Many owners think their dog has had a stroke. True strokes do occur in dogs but are less common than idiopathic vestibular disease. Signs that point to a brain problem include sleepiness or confusion, weakness on one side, seizures, or signs that keep getting worse. Your vet will check for these.
When to see a vet
See a vet the same day for any sudden head tilt or loss of balance. Go to an emergency clinic if your dog has a seizure, is very dull or hard to wake, can’t stand at all, keeps vomiting, or collapses.
How vets diagnose it
Your vet will do a neurological exam and look into the ears. Bloodwork and thyroid testing are common. If a brain or deep ear problem is suspected, an MRI or CT scan may be recommended.
Treatment
- Supportive care for idiopathic cases while the brain adapts.
- Anti-nausea medication such as maropitant. Some vets also use meclizine for motion-sickness-like signs.
- Fluids if your dog is dehydrated or can’t keep water down.
- Antibiotics for ear infections, sometimes for several weeks.
- Thyroid medication if hypothyroidism is found.
- Stopping or adjusting any drug that may be causing the signs.
Home care during recovery
- A safe, padded space: use rugs, yoga mats, or blankets, and block off stairs and pools.
- Support walking: a towel under the belly or a support harness helps with bathroom trips.
- Help with eating and drinking: hand-feed small amounts, raise bowls to head height, and offer water often. Tempting, soft food helps during the nauseous phase.
- Keep your dog propped up on its chest (sternal) if it can’t stand, and turn it every few hours if it’s lying on its side.
- Keep it calm and dim: a quiet room reduces disorientation.
- Keep the coat clean if there are accidents.
What to avoid
- Human motion sickness products unless your vet recommends a specific product. Some combination products contain other drugs that are unsafe for dogs.
- Forcing food or water into a dog that’s vomiting or can’t swallow well, which risks choking and pneumonia.
- Cleaning or putting drops in the ears until your vet confirms the eardrum is intact.
- Letting your dog use stairs or furniture until balance returns.
Frequently asked questions
How long does old dog vestibular disease last?
The worst signs usually ease within 1–3 days, with steady improvement over 2–3 weeks. A slight head tilt may remain for life, but most dogs adapt well.
Can it happen again?
Yes, some dogs have another episode, sometimes affecting the other side.
Should I put my dog down because of vestibular disease?
Don’t make that decision in the first few days. Many dogs that look severely affected recover well. Talk it through with your vet.
Sources
- Merck Veterinary Manual: Vestibular disease in dogs and cats
- Rossmeisl JH Jr. Vestibular disease in dogs and cats. Vet Clin North Am Small Anim Pract. 2010
- Evans J, et al. Diazepam as a treatment for metronidazole toxicosis in dogs: a retrospective study of 21 cases. J Vet Intern Med. 2003
- VCA Animal Hospitals: Vestibular disease in dogs
This article is for general education and is not a substitute for care from your own veterinarian. Learn about The Pet Vet and our editorial policy.