Quick answer. Labyrinthitis and vestibular neuritis are inflammation of the balance apparatus of the inner ear, most often triggered by a viral infection such as a cold or flu. Vestibular neuritis affects the balance nerve and causes sudden, severe spinning vertigo without hearing change; labyrinthitis also involves hearing, so it adds hearing loss and/or tinnitus. Symptoms start abruptly, are worst in the first day or two, and settle over days to weeks as the brain compensates. Most people recover well with anti-nausea medicine and, where needed, balance-rehabilitation exercises. Importantly, sudden severe vertigo can occasionally signal a stroke, so certain red flags need emergency assessment (call 995).
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In a medical emergency, or for severe or sudden symptoms such as breathing difficulty, chest pain, fainting or stroke signs, call 995 immediately.
Most sudden, prolonged vertigo turns out to be a self-limiting inner-ear problem – but because a stroke can occasionally mimic it, knowing the red flags is what keeps this safe.
What they are
Deep inside each ear sits the labyrinth, a set of fluid-filled canals and sensors that tell the brain how your head is moving, working alongside the cochlea, which handles hearing. Signals travel to the brain along the vestibulocochlear nerve. When part of this system becomes inflamed – usually in the wake of a viral illness – the affected ear starts sending confused or lopsided balance signals. The brain, receiving mismatched information from the two ears, interprets this as a strong, false sense of movement: vertigo.
The two conditions differ by where the inflammation sits. Vestibular neuritis affects the balance (vestibular) nerve alone, so it causes vertigo and unsteadiness but leaves hearing untouched. Labyrinthitis involves the wider labyrinth, including the hearing apparatus, so it adds hearing loss and/or tinnitus (ringing in the ear) on top of the vertigo. In practice the two overlap and are managed in much the same way; the presence or absence of hearing change is the main clue to which one you have. Both are almost always one-sided.
How it differs from a stroke
This is the single most important distinction to understand. A stroke affecting the brainstem or cerebellum – the parts of the brain that coordinate balance – can produce sudden vertigo that, at first glance, looks like an inner-ear problem. The consequences of missing it are serious, so err firmly on the side of caution.
Ordinary labyrinthitis and vestibular neuritis cause vertigo, nausea and unsteadiness – but they do not cause the warning signs of a stroke. Call 995 immediately if sudden vertigo comes with any of the following:
- a sudden severe or “worst-ever” headache;
- double vision or loss of vision;
- slurred speech or difficulty finding words;
- facial droop, or weakness or numbness of an arm or leg, especially on one side;
- an inability to walk or stand unaided that goes beyond the general unsteadiness of vertigo;
- new deafness in one ear appearing at the same time as the vertigo.
A useful rule of thumb: inner-ear vertigo makes you feel dreadful but you can usually still shuffle to the bathroom holding the wall, and your speech, vision and limbs work normally. If any of the signs above are present – or if you simply are not sure – treat it as an emergency rather than waiting to see if it passes.
Symptoms
The hallmark is sudden onset. Many people are well one moment and, within minutes to an hour, are overwhelmed by intense spinning. Typical features include:
- Severe, constant spinning vertigo lasting hours to days, rather than the brief seconds-long spins of BPPV;
- vertigo that is worse on moving the head, so people tend to lie very still;
- nausea and vomiting, sometimes marked enough to cause dehydration;
- unsteadiness and a tendency to veer to one side when walking;
- rapid, involuntary eye movements (nystagmus);
- in labyrinthitis only, hearing loss and/or tinnitus in the affected ear.
Symptoms are usually most severe in the first 24 to 48 hours, then ease. It also helps to know how these conditions differ from two other common causes of dizziness. BPPV causes brief spins (seconds) triggered by specific head positions, not constant vertigo, and Meniere’s disease causes recurrent attacks with fluctuating hearing loss, tinnitus and ear fullness, rather than a single prolonged episode.
Causes and who is at risk
The most common trigger is a viral infection. The inflammation often follows – or comes alongside – a cold, flu, sore throat or other upper respiratory infection, which is why cases sometimes cluster during viral seasons. Less commonly, a bacterial ear infection can spread to the labyrinth, and rarely the inflammation is linked to an autoimmune process. In many people no single cause is ever pinned down.
These conditions can affect anyone, at any age, and are often unpredictable. Factors that may raise the likelihood include a recent viral illness, a history of ear infections, and possibly stress, fatigue or a weakened immune system. Smoking and heavy alcohol use are general risks to ear and vascular health. They are not contagious in themselves, although the viruses that trigger them can of course spread.
How it is diagnosed
Diagnosis is largely clinical – a doctor listens to the story of sudden, sustained vertigo and examines you, paying close attention to eye movements, balance, coordination, and your ability to walk. A key part of the assessment is deliberately checking for the stroke warning signs above, since the examination is what separates a benign inner-ear problem from a central cause.
There is no single blood test that confirms it. Instead, tests are used to exclude other causes when needed: a hearing test if hearing is affected, and brain imaging (usually an MRI) if the pattern is atypical or a central cause such as a stroke is suspected. In Singapore, an initial assessment can be made by a GP or polyclinic doctor, who will refer you to an ENT (ear, nose and throat) specialist or the emergency department if red flags or sudden hearing loss are present.
Course and complications
The outlook is generally good. The worst of the vertigo typically passes within a few days, and balance is usually regained over roughly 2 to 6 weeks as the brain “compensates” – learning to rely on the healthy ear, vision and other balance cues. Hearing loss from labyrinthitis often recovers, but not always; sudden hearing loss needs prompt specialist review because early treatment gives the best chance of recovery.
Some people are left with residual unsteadiness, brief dizziness on quick head turns, or a sense of being “off” in busy visual environments for weeks or months. This is where vestibular rehabilitation makes a real difference. A minority develop persistent symptoms or anxiety about future attacks; both are treatable, so it is worth returning to your doctor rather than soldiering on.
Treatment
Treatment aims to control symptoms early, then support the brain’s natural recovery. It generally involves:
- Rest and fluids. In the first day or two, lying still in a quiet, dimly lit room and keeping hydrated (small, frequent sips) helps enormously, especially if vomiting.
- Short-term medicines. A short course – usually only a few days – of anti-sickness or antihistamine (vestibular-suppressant) medicine can ease severe nausea and vertigo. These are deliberately kept brief: taken for too long, they can actually slow the brain’s compensation and prolong recovery.
- Gradual return to activity. As the acute phase settles, moving around and using your eyes and head – rather than staying rigidly still – encourages the balance system to recalibrate.
- Vestibular rehabilitation. Structured balance and gaze-stabilisation exercises, often guided by a vestibular physiotherapist, are the mainstay for lingering unsteadiness and can speed and improve recovery.
Where a bacterial cause is confirmed, antibiotics are used. Sudden hearing loss with labyrinthitis is managed urgently by an ENT specialist. Note that this is not a condition self-treated with brand-name remedies – medicines should be chosen and timed by a doctor.
Living with it and recovery
Recovery is usually a matter of patience. Push gently at your own pace: do a little more each day, but avoid driving or operating machinery while vertigo, drowsiness or blurred vision persists. Simple measures – getting up slowly, using good lighting, having something to hold on to on stairs, and reducing fall hazards at home – help prevent injuries while balance is off. Alcohol, dehydration, tiredness and stress can all make symptoms feel worse, so they are worth minimising during recovery. If unsteadiness lingers beyond a few weeks, ask about vestibular physiotherapy rather than assuming it will simply fade on its own.
When to see a doctor
See a GP, polyclinic doctor or ENT specialist for a first episode of sudden, prolonged vertigo, if symptoms are not settling after a week or two, if hearing loss or tinnitus develops, or if dizziness keeps recurring. Reliable Singapore health information is also available on HealthHub. Most importantly, call 995 for sudden severe vertigo accompanied by any stroke warning sign – a severe headache, double or lost vision, slurred speech, facial or limb weakness or numbness, difficulty walking beyond the vertigo, or new one-sided deafness. Ordinary labyrinthitis and vestibular neuritis do not cause these.
Related ear, nose & throat conditions
- Sudden hearing loss
- Otitis externa (swimmer’s ear)
- Cholesteatoma
- Laryngeal cancer (voice box)
- Acoustic neuroma
- Loss of smell (anosmia)
- Vocal cord paralysis
- Salivary gland tumours
- Enlarged adenoids (children)
- Hearing loss
- Hoarse voice & laryngitis
- ENT specialists in Singapore
Sources
- NHS — labyrinthitis and vestibular neuritis: definitions, symptoms, duration (2–6 weeks), treatment, when to seek help.
- Cleveland Clinic — labyrinthitis and vestibular neuritis: comparison with BPPV and Meniere’s; diagnosis and treatment.
- Johns Hopkins Medicine — labyrinthitis and vestibular neuritis overview.
- Acute-vertigo / HINTS literature — distinguishing central (stroke) from peripheral vertigo; stroke red flags.