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A head tilt that doesn't go away is usually a sign of vestibular disease, a problem in the balance system of the inner ear or the brain.1 The two most common causes in dogs are idiopathic (old dog) vestibular disease and an inner ear infection.2 A tilt that comes with dullness, collapse or eyes that flick up and down can point to the brain and needs a vet the same day.1
Key Takeaways
Call us today if your dog's head tilt comes with dullness, collapse, seizures, stumbling or knuckling, eyes that flick up and down, or a recent blow to the head. These signs point to the brain, or to an ear infection that has reached it.1,3,4 Call us at (519) 896-0532, or use our emergency page after hours.
It depends on what comes with it. I would have any new head tilt examined within a day, and the first six signs in the table call for a visit today.1,3,4
| What you see | What it can mean | How soon |
|---|---|---|
| Dull, hard to wake or confused | Brain involvement, or an ear infection that has reached the brain1,3 | Today |
| Eyes flicking up and down, or each eye moving differently | Central vestibular disease1 | Today |
| Stumbling, knuckling or placing the paws wrongly | Central vestibular disease1 | Today |
| Seizures | Brain disease or injury4 | Today |
| A tilt after a fall, a car accident or a blow to the head | Head injury. Some damage doesn't show for 24 to 48 hours4 | Today |
| Can't stand, or keeps vomiting | Severe vestibular signs. Collapse was recorded in 32% of vestibular cases in UK records and vomiting in 26%1 | Today |
| Alert, eating and walking, with eyes flicking side to side | Peripheral disease such as idiopathic vestibular disease or an ear infection1,2 | Within a day |
| Head shaking, scratching or discharge from one ear | Ear infection, which can reach the inner ear3 | Within a day |
No. Many healthy dogs tilt their heads while listening to a voice or a sound, then straighten up. In a study of 103 dogs, head tilts rose as owners added communication cues, up to friendly, dog-directed speech.5
A medical tilt stays. The head sits to one side while the dog rests, eats or walks, and it often comes with a wobbly gait, circling or eyes that flick from side to side.1,3
The neck can cause a tilt too. Of 15 dogs with a tilt from spinal or neck-tissue disease and no brain abnormality, eight had neck pain, and the tilt resolved in eight after the underlying problem was treated.6
Vestibular disease is peripheral when it affects the inner ear or the nerve that carries its signals, and central when it affects the brain.1,3 Both cause a head tilt, imbalance and abnormal eye movements, so they look alike at first.1 A neurological exam tells them apart, and the answer sets the urgency and the outlook.
| Sign | Peripheral (ear or nerve) | Central (brain) |
|---|---|---|
| Alertness | Alert, with a normal appetite | Can be dull, sleepy or confused1,3 |
| Eye movement | Flicks side to side, or rolls | Can flick up and down, or each eye moves differently1 |
| Paw placement | Normal, though the dog may lean or fall to one side | Can be abnormal, with knuckling1 |
| Nerves of the head | Facial droop is possible | Nerves beyond the face and ear can be affected1,2 |
| Common causes | Idiopathic vestibular disease, ear infection, hypothyroidism | Brain inflammation, tumour, stroke, injury, toxins1,2 |
Facial paralysis is common in peripheral disease: in one series, 103 of 188 dogs had it.2 Vertical eye movement is generally seen only in central disease, but it's hard to tell from rotary movement at home, so don't try to grade it yourself.1
Some breeds turn up more often. In UK primary-care records, French Bulldogs, Bulldogs, King Charles Spaniels, Cavalier King Charles Spaniels and Springer Spaniels had the highest odds of a vestibular diagnosis.1
An ear infection causes a true head tilt only when it reaches the inner ear. That's otitis interna. An infection of the middle ear alone, otitis media, doesn't cause a neurological head tilt, although a dog with a sore ear may hold its head to one side.3
Otitis media most often occurs in dogs with a chronic outer ear infection (up to 80% of cases). Signs include head shaking, scratching at the ear, discharge in the canal, pain when opening the mouth, and sometimes a drooping face or a droopy eyelid with a small pupil (Horner syndrome).3
An inner ear infection adds the head tilt. Dogs may also circle or fall toward the affected side, have eyes that flick side to side, feel nauseated and lose hearing.3
Diagnosis starts with a history, an exam and, when possible, a look at the eardrum with an otoscope. The eardrum can look normal even when the middle ear is infected, so CT or MRI gives the definitive answer.3 Treatment combines culturing a sample from the middle ear, flushing it under general anesthesia, and antibiotics given in the ear and by mouth when possible.3
Treatment works best when it starts early. Chronic cases often respond poorly or come back after they seem to clear.3 I wouldn't put drops or cleaners in the ear of a dog with a head tilt before it's been examined, because few products are safe in the middle ear.3
An inner ear infection can spread to the brain. Among 30 dogs with meningitis or meningoencephalitis from an ear infection, 96% were flat-faced breeds and the average age was 7.5 years. Recovery was complete in 28%.7
The spread can happen without obvious brain signs. The authors recommend MRI and spinal fluid tests when a middle or inner ear infection is diagnosed, especially if it's chronic or recurrent and in flat-faced breeds.7
Idiopathic vestibular disease, also called geriatric or old dog vestibular disease, was the most common cause of peripheral vestibular disease in what its authors call the largest study of the condition: 128 of 188 dogs, or 68%.2 "Idiopathic" means no cause has been found, so vets reach the diagnosis by ruling out other causes.1
It favors older dogs. Increasing age made it more likely than an ear infection,2 and the median age at diagnosis of vestibular disease in UK primary-care records was 12.7 years.1 Younger dogs get it too. The youngest idiopathic case in the 188-dog series was 15 months old.2
Onset is usually sudden, in 118 of the 128 idiopathic cases. Nearly all had a head tilt (126 of 128), 61% were unsteady, and 53% had eyes that flicked from side to side. About half also had facial paralysis, so a drooping face doesn't rule it out.2
Treatment is supportive. Anti-nausea drugs were the most common treatment in UK primary care, given to 43% of dogs. The authors note that no treatment has been proved beneficial and that signs usually improve within one to two weeks.1 When improvement was recorded, it came after a median of 4 days.1
A head tilt after a fall, a car accident or a blow to the head is an emergency. Trauma can damage the brain, or the nerve and ear structures that feed the balance system, so it can cause peripheral or central signs.1,2 Brain injury can also cause seizures, blindness, circling and loss of balance.4
Some damage doesn't show for 24 to 48 hours after the injury.4 A dog that seems fine after a hard knock, then tilts its head, stumbles or turns dull, needs to be seen at once. Head pressing, where a dog leans its head against a wall or corner, is a separate warning sign. Our post on head pressing in dogs covers it.
Less common causes include:
The first step is deciding whether the problem is peripheral or central. That comes from the history and a neurological exam: alertness, eye movements, paw placement and the nerves of the head.1 The vet also looks in both ears with an otoscope, as far as the dog allows.3
The next steps depend on those findings. Bloodwork and x-rays can be done here, and thyroid testing checks for hypothyroidism.2 CT or MRI, and sometimes a spinal fluid sample, confirm ear disease and help sort out brain disease.1,3,7 Those are done at a referral hospital.
It depends on the cause, and some dogs keep a mild tilt. How many depends on the study. In UK primary-care records, 9% of dogs had a tilt recorded more than a month after improvement, with incomplete follow-up.1 In a referral series of dogs with idiopathic disease, 27% kept one.2
| Cause | What to expect |
|---|---|
| Idiopathic vestibular disease | Usually improves within one to two weeks.1 Of 94 dogs with a known outcome in one series, half recovered completely and 25 kept a head tilt. Recurrence was recorded in 19 of 85.2 |
| Inner ear infection | Treatment works best when started early. Chronic cases often respond poorly or return.3 |
| Ear infection that reached the brain | Recovery was complete in 28% of 30 dogs.7 |
| Metronidazole toxicity | Signs cleared a median of 3 days after the drug was stopped, in 26 dogs.8 |
| Neck disease | The tilt resolved in 8 of 15 dogs after the underlying problem was treated.6 |
The outlook for brain disease depends on the cause and is clearer after imaging.
A dog with a head tilt is unsteady and sometimes nauseated, so it needs a calm, safe space while it recovers.1
Call us at (519) 896-0532 about any new head tilt.
A head tilt is a sign of vestibular disease, a problem with the balance system. The two most common causes are idiopathic (old dog) vestibular disease and an inner ear infection. Less common causes include brain inflammation or tumours, hypothyroidism, drug reactions such as metronidazole toxicity, head injury and neck disease.
It can be. A head tilt with dullness, collapse, seizures, stumbling or knuckling, eyes that flick up and down, or a recent blow to the head needs a vet today. A new tilt in a dog that's alert, eating and walking should still be examined within a day.
Yes, when the infection reaches the inner ear. An infection of the middle ear alone doesn't cause a neurological head tilt, although a dog with a sore ear may hold its head to one side. Avoid putting drops or cleaners in the ear before a vet has examined it.
With idiopathic vestibular disease, signs usually improve within one to two weeks. Some dogs keep a mild tilt: 27% of dogs with idiopathic disease in one referral series still had one at follow-up. For ear infections and other causes, the outlook depends on the cause and how early treatment starts.
Many healthy dogs tilt their heads while listening to a voice or a sound. In a study of 103 dogs, tilts increased as owners used more communication cues, including friendly, dog-directed speech. A tilt that stays while the dog rests, or comes with unsteadiness or eyes flicking side to side, is a medical sign.
Yes. In a referral series, 19 of 85 dogs with idiopathic disease (22%) had at least one more episode. Another episode should still be examined to rule out other causes.
Sources
