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BioSignal
Condition

Vertigo & Dizziness

Dizziness is not one thing — and the first job is telling which kind you have

Last reviewed
July 2026
Version
1.0
Review cadence
Annually

What it is

"Dizziness" is an umbrella word for several very different experiences, and sorting out which one is happening is most of the work. True vertigo is an illusion of movement — the room spinning or tilting — and points toward the balance organs of the inner ear or, less often, the brain. Presyncope is the light-headed, about-to-faint feeling, and points toward blood pressure and the heart. Disequilibrium is unsteadiness on the feet without spinning, and points toward the nerves, joints and eyes that keep you balanced. These are not shades of the same problem; they have different causes and different work-ups. Modern practice leans less on asking people to label the sensation — which is genuinely hard to describe — and more on the timing and the triggers: how long it lasts, and what sets it off.

Why it matters

Two things make getting this right matter. The first is a common, fixable win that is under-known: benign paroxysmal positional vertigo (BPPV), the single most common cause of vertigo, is caused by displaced crystals in the inner ear and can often be corrected in minutes with a simple positioning manoeuvre (the Epley) rather than medication. Many people carry it for months not knowing it is treatable. The second is the opposite: a small minority of sudden, continuous dizziness is caused by a stroke in the back of the brain, which can masquerade as an inner-ear problem. The reassuring part is that isolated dizziness is rarely a stroke — in emergency-department studies, under 1% of people with dizziness alone were having one. The vital part is the exception: when dizziness comes with slurred speech, double vision, facial droop, weakness or numbness on one side, a severe new headache, or an inability to walk, that is not ordinary vertigo and needs emergency assessment.

The evidence

What BioSignal knows about treating this

Guideline-anchored clinical contextLast reviewed July 2026 · reviewed annually · 13 references

What works for Vertigo & Dizziness

BioSignal’s clinical summary, most important first.

  1. Canalith repositioning (the Epley manoeuvre) for BPPV — simple, quick and effective
  2. Vestibular rehabilitation exercises for persistent imbalance and after vestibular neuritis
  3. Short-term vestibular sedatives for acute severe vertigo only — they hinder recovery if continued
  4. Treating the specific cause — migraine management for vestibular migraine; addressing blood pressure or medications for presyncope
  5. Urgent assessment where red-flag features suggest a central (stroke) cause
Start Here

New to this? Read these first

  1. BiomarkerBlood PressureThe most impactful modifiable vital sign
  2. Body SystemBrainCognition, mood, memory, and neurological health.
  3. ConditionStrokeA brain attack — and largely preventable
Typical Journey

How this usually unfolds

  1. Recognize risk factors
  2. Get diagnosed
  3. Track key biomarkers
  4. Lifestyle first
  5. Evidence-based treatment
  6. Long-term monitoring

An orientation to how this topic is typically approached — not medical advice.

Who is at risk

  • Age — BPPV and balance disorders become more common with age
  • A previous episode of BPPV (it commonly recurs)
  • Recent viral illness (a trigger for vestibular neuritis)
  • Migraine (vestibular migraine is a common cause of recurrent vertigo)
  • Cardiovascular risk factors — relevant to both presyncope and the rare central (stroke) cause
  • Certain medications (some blood-pressure drugs, sedatives, and ototoxic antibiotics)
  • Head injury

How it's diagnosed

The diagnosis is built from the story more than from scans, and the two most useful questions are how long each episode lasts and what brings it on. Brief spinning triggered by rolling over in bed or tipping the head back suggests BPPV, which is confirmed at the bedside with the Dix-Hallpike positioning test. A single bout of severe spinning lasting days, often after a cold, suggests vestibular neuritis. Recurrent spells with fluctuating hearing loss, ringing and a feeling of fullness in one ear suggest Meniere's disease; recurrent spells in someone with migraine suggest vestibular migraine. The essential safety step is to look for features of a central cause: in sudden, continuous vertigo, specific eye-movement findings (the HINTS examination, done by a trained clinician) can detect a stroke more reliably than an early MRI. Imaging is reserved for when the history or examination raises that concern.

  • A careful history focused on the timing (seconds, minutes, hours, days) and the triggers of each episode
  • The Dix-Hallpike positioning test — to confirm BPPV
  • Examination of eye movements and gait, including the HINTS examination where a central cause is possible
  • Blood pressure lying and standing — where presyncope or orthostatic dizziness is suspected
  • Hearing assessment — where Meniere's disease or another ear cause is suspected
  • Brain imaging (MRI) only where the history or examination suggests a central cause
Most important

Key biomarkers

Blood Pressure
Day to day

Lifestyle

  • Learning the Epley manoeuvre from a clinician can allow BPPV to be self-treated at home if it recurs
  • Standing up slowly helps if the dizziness comes on when rising (an orthostatic pattern, not vertigo)
  • Reviewing medications with a clinician — several can cause or worsen dizziness
  • For vestibular migraine, the usual migraine triggers (sleep, hydration, caffeine, stress) apply
  • Not persisting with vestibular sedative medication beyond the first few days — it slows the brain's natural compensation
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Explore this condition across BioSignal

Related body systems

Brain

Related conditions

StrokeMigraineTinnitusHearing LossAnxiety Disorders

Frequently asked questions

When is dizziness an emergency?

When it comes with the warning signs of a stroke. Call emergency services immediately if dizziness or vertigo occurs together with any of these: face drooping on one side, weakness or numbness in an arm or leg (especially on one side), slurred or garbled speech, sudden double vision or loss of vision, a sudden severe headache unlike any before, or a sudden inability to walk or stand. The memory aid is BE-FAST — Balance, Eyes, Face, Arm, Speech, Time to call for help. Most dizziness is not a stroke — in studies of people arriving at emergency departments with dizziness alone, fewer than 1% were having one — but these specific combinations are the exception where minutes matter, and they are the reason this is not a symptom to research instead of acting on.

What is BPPV, and is it really fixable in minutes?

Often, yes — and this is the most useful thing on the page. Benign paroxysmal positional vertigo is the most common cause of vertigo. It happens when tiny calcium crystals that normally sit in one part of the inner ear come loose and drift into a balance canal, so that certain head movements — rolling over in bed, looking up — set off brief, intense spinning that settles within a minute. Because it is a mechanical problem, it has a mechanical fix: a specific sequence of head and body positions called the Epley manoeuvre guides the crystals back out of the canal. In trials it resolved vertigo far more often than a sham procedure (roughly a four-fold increase in complete resolution), and it can often be done in a single clinic visit. Medication does not fix BPPV; repositioning does.

I have attacks of vertigo with ringing and hearing loss in one ear — what is that?

That combination — episodes of spinning lasting minutes to hours, with fluctuating hearing loss, ringing (tinnitus), and a sense of fullness in one ear — is the classic picture of Meniere's disease. It is worth an assessment, both to confirm it and to protect the hearing over time. One honest note on treatment: betahistine, the drug most widely prescribed for Meniere's, did not out-perform placebo in a rigorous randomised trial, so its benefit is doubtful even though it remains commonly used. Measures like reducing dietary salt are conventional but rest on weak evidence. Meniere's is real and manageable, but the evidence base for its treatments is thinner than the confidence with which they are often prescribed.

I had sudden spinning that lasted for days after a cold. What was it?

That pattern — a single bout of severe, continuous vertigo lasting days, often following a viral illness, with nausea but no hearing loss — is typical of vestibular neuritis, an inflammation of the balance nerve. It is unpleasant but usually settles as the brain compensates over days to weeks, and vestibular rehabilitation exercises help that recovery. Anti-sickness and vestibular-sedative medicines can ease the worst couple of days but should not be continued, because they actually slow the brain's adaptation. Whether steroids speed recovery is genuinely debated — one trial suggested a benefit on an objective measure, but a Cochrane review judged the overall evidence insufficient. The important first step, though, is making sure a sudden, continuous vertigo like this is not the rare central cause — which is a judgement for a clinician who can examine the eye movements.

Can dizziness be caused by something other than my ears?

Frequently. If the feeling is light-headed or about-to-faint rather than spinning, the cause is more likely blood pressure or the heart than the inner ear — for example dizziness on standing up (orthostatic hypotension). If it is unsteadiness on the feet without any spinning, it may come from the nerves, vision or joints, especially with age. Medications are a common and overlooked cause: in one study of older adults, drugs were implicated in nearly a quarter of dizziness cases. Anxiety can also produce a persistent light-headedness. This is exactly why the first job is identifying which kind of dizziness it is, because 'dizziness' sends you down completely different diagnostic paths depending on the answer.

Evidence summary

Dizziness is a symptom, not a diagnosis, and it spans distinct categories — vertigo (inner-ear or, rarely, central), presyncope (cardiovascular), and disequilibrium — that require different evaluation; contemporary practice classifies acute dizziness by timing and triggers rather than by the quality of the sensation. Benign paroxysmal positional vertigo is the most common cause of true vertigo and is effectively treated with a canalith-repositioning (Epley) manoeuvre, which in a Cochrane review increased complete resolution roughly four-fold versus sham; medication does not treat it. Vestibular neuritis causes a single prolonged episode that usually resolves with time and vestibular rehabilitation, with vestibular sedatives useful only briefly and corticosteroids of debated benefit (one positive trial on an objective measure; a Cochrane review judged the evidence insufficient). Meniere's disease causes recurrent vertigo with fluctuating hearing loss and tinnitus; betahistine, its most-prescribed treatment, was no better than placebo in a rigorous randomised trial. The safety-critical point is that a minority of acute continuous vertigo is caused by posterior-circulation stroke — around a quarter of acute vestibular syndrome presentations, though under 1% of all-comers with isolated dizziness — and a trained bedside eye examination (HINTS) detects it more reliably than early MRI. Red-flag features (slurred speech, double vision, facial droop, one-sided weakness or numbness, severe new headache, inability to walk) warrant emergency assessment; queries combining dizziness with these features are routed to urgent care rather than to this page.

References & sources

  • Muncie HL, Sirmans SM, James E. Dizziness: approach to evaluation and management. Am Fam Physician 2017;95(3):154-162 (PMID 28145669)
  • Newman-Toker DE, Edlow JA. TiTrATE: a novel, evidence-based approach to diagnosing acute dizziness and vertigo. Neurol Clin 2015;33(3):577-599 (PMID 26231273)
  • von Brevern M, Radtke A, Lezius F, et al. Epidemiology of benign paroxysmal positional vertigo: a population based study. J Neurol Neurosurg Psychiatry 2007;78(7):710-715 (PMID 17135456)
  • Bhattacharyya N, Gubbels SP, Schwartz SR, et al. Clinical practice guideline: benign paroxysmal positional vertigo (update). Otolaryngol Head Neck Surg 2017;156(3 Suppl):S1-S47 (PMID 28248609)
  • Hilton MP, Pinder DK. The Epley (canalith repositioning) manoeuvre for benign paroxysmal positional vertigo. Cochrane Database Syst Rev 2014;12:CD003162 (PMID 25485940)
  • Fishman JM, Burgess C, Waddell A. Corticosteroids for the treatment of idiopathic acute vestibular dysfunction (vestibular neuritis). Cochrane Database Syst Rev 2011;5:CD008607 (PMID 21563170)
  • Strupp M, Zingler VC, Arbusow V, et al. Methylprednisolone, valacyclovir, or the combination for vestibular neuritis. N Engl J Med 2004;351(4):354-361 (PMID 15269315)
  • Adrion C, Fischer CS, Wagner J, et al. (BEMED study group). Efficacy and safety of betahistine treatment in patients with Meniere's disease: primary results of the BEMED trial. BMJ 2016;352:h6816 (PMID 26797774)
  • Kerber KA, Brown DL, Lisabeth LD, et al. Stroke among patients with dizziness, vertigo, and imbalance in the emergency department: a population-based study. Stroke 2006;37(10):2484-2487 (PMID 16946161)
  • Tarnutzer AA, Berkowitz AL, Robinson KA, et al. Does my dizzy patient have a stroke? A systematic review of bedside diagnosis in acute vestibular syndrome. CMAJ 2011;183(9):E571-E592 (PMID 21576300)
  • Kattah JC, Talkad AV, Wang DZ, et al. HINTS to diagnose stroke in the acute vestibular syndrome: three-step bedside oculomotor examination more sensitive than early MRI. Stroke 2009;40(11):3504-3510 (PMID 19762709)
  • Lempert T, Olesen J, Furman J, et al. Vestibular migraine: diagnostic criteria. J Vestib Res 2012;22(4):167-172 (PMID 23142830)
  • American Stroke Association. Stroke symptoms (BE-FAST). stroke.org (accessed 2026)

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