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What Is BPPV?
Benign paroxysmal positional vertigo is caused by displaced calcium carbonate crystals — called otoconia or "canaliths" — within the semicircular canals of the inner ear. In normal physiology, these crystals sit on the utricle, a gravity-sensing structure. When they break loose and migrate into one of the three semicircular canals, they create abnormal fluid movement in response to head position changes, generating a false sense of rotation.
The result is a characteristic pattern: brief (typically 10–60 second) episodes of intense rotational vertigo triggered by specific head movements — rolling over in bed, looking up, bending forward, or rising from lying. The vertigo is positional and episodic, not constant. Most people also experience nausea and, during an episode, observable rapid eye movement (nystagmus).
| Feature | Detail |
|---|---|
| Cause | Displaced otoconia (calcium carbonate crystals) in the semicircular canals |
| Most common canal | Posterior semicircular canal (approximately 85-90% of cases) |
| Duration of episodes | Seconds to under one minute per positional change |
| Diagnosis | Dix-Hallpike test (posterior canal); Roll test (horizontal canal) |
| First-line treatment | Epley (canalith repositioning) manoeuvre |
| Prevalence | Lifetime prevalence approximately 2.4%; 64% lifetime recurrence |
| Commonly misdiagnosed as | Inner ear disease, cervicogenic dizziness, anxiety, cardiac arrhythmia |
BPPV is benign — it is not caused by a tumour, stroke, or serious neurological pathology. However, the presentation can be distressing, and for older adults, the instability and balance disruption significantly increases fall risk.
Who Typically Experiences This?
Older Adults
BPPV becomes significantly more common with age. The otoconia become less securely attached to the utricle over time, making spontaneous displacement more likely. For older adults, the consequences of BPPV extend beyond the vertigo itself — the instability, fear of movement, and avoidance of head positions can accelerate deconditioning and increase fall risk substantially. Older adults presenting with dizziness should have BPPV excluded before other explanations are pursued.
People Who Have Had Head Trauma or Extended Bed Rest
BPPV is the most common cause of dizziness following head injury. It is also a recognised complication of extended bed rest — particularly after surgery, illness, or hospitalisation — where the otoconia can shift due to sustained supine positioning and reduced vestibular stimulation. Post-concussion dizziness warrants BPPV assessment.
People With a History of Inner Ear Problems
Prior episodes of vestibular neuritis, Ménière's disease, or other inner ear pathology increase the likelihood of BPPV due to structural changes in the vestibular apparatus. BPPV and vestibular neuritis can co-occur, complicating the presentation.
Gym Athletes and Those Performing Overhead or Inverted Movements
Olympic weightlifting movements (snatch, clean and jerk), heavy overhead pressing, gymnastics, yoga inversions, and activities requiring rapid head position changes are all capable of displacing loose otoconia. Athletes presenting with positional dizziness during or after training deserve a BPPV screen before the symptoms are attributed to other causes.
People Managing Stress and Sleep Disruption
There is a recognised association between BPPV and sleep position (prolonged supine or lateral positioning) and some evidence linking elevated cortisol with otoconia fragility. People going through periods of significant physical or psychological stress, or sleep disruption, appear to have higher rates of recurrence.
The Vestibular Lens: How We Think About BPPV
BPPV is primarily a vestibular diagnosis, but it sits at the intersection of vestibular, proprioceptive, and cervical function — and it is often where we encounter the problem in a manual therapy context.
The key clinical point is this: the treatment for BPPV is mechanical, not pharmacological. The otoconia need to be physically moved back to where they belong. No amount of vestibular suppressant medication (antihistamines, anti-nausea drugs) will reposition the crystals. These medications may reduce the symptom of vertigo, but they do not address the cause — and there is evidence that they slow recovery by suppressing the very vestibular signals needed for central adaptation.
The Epley manoeuvre — a series of four specific head positions held for 30 seconds each — guides the displaced otoconia out of the posterior semicircular canal and back toward the utricle. A 2014 Cochrane systematic review (Hilton & Pinder) analysed 11 RCTs and found the Epley manoeuvre significantly more effective than sham or control for complete resolution of vertigo and conversion of positive to negative Dix-Hallpike. [1]
The Dix-Hallpike test is the diagnostic standard for posterior canal BPPV, and it should be performed before any repositioning is attempted. Horizontal canal BPPV (less common, approximately 10–15%) is identified with the Roll test and treated with a different manoeuvre (the Barbecue Roll). Canal identification matters — treating the wrong canal with the wrong manoeuvre is at best ineffective and at worst can displace crystals into a different canal.
We also assess the cervical spine in presentations of positional dizziness. Upper cervical joint dysfunction and cervicogenic dizziness (see our separate cervicogenic dizziness page) can co-exist with BPPV, and distinguishing between them — or managing both — is an important part of the assessment. The Dix-Hallpike and Roll tests are central to this differentiation.
What Does the Research Say?
The Epley manoeuvre is significantly more effective than sham for resolving BPPV. A Cochrane systematic review by Hilton and Pinder (2014) included 11 RCTs comparing the Epley manoeuvre to sham, control, or other manoeuvres. The Epley was significantly more effective for complete vertigo resolution and for converting a positive Dix-Hallpike to negative. It compared favourably to the Brandt-Daroff exercises and the Semont manoeuvre, with no serious adverse effects reported across trials. [1]
Clinical practice guidelines endorse the Epley as first-line treatment and advise against medication and imaging. The AAO-HNS Clinical Practice Guideline for BPPV (Bhattacharyya et al., 2017 update) synthesised 2 CPGs, 20 systematic reviews, and 27 RCTs. It recommends the Dix-Hallpike as the diagnostic standard, the Epley manoeuvre as first-line treatment, and specifically advises against vestibular suppressant medications, routine imaging (CT/MRI), and audiological testing in typical presentations. The rationale: no serious cause is being missed, and medication delays recovery. [2]
How We Approach BPPV
Assessment begins with the Dix-Hallpike test — a standardised positional test performed on the treatment table — to confirm posterior canal BPPV and identify the affected side. If horizontal canal BPPV is suspected, we also perform the Roll test.
Once canal and side are identified, we perform the Epley (canalith repositioning) manoeuvre. This involves guiding the head through four specific positions, each held for approximately 30 seconds, to move the displaced otoconia out of the affected canal and back toward the utricle. Most people notice a reduction in symptom intensity within one to two treatments. Complete resolution within one to four appointments is common in straightforward posterior canal BPPV.
We also assess the upper cervical spine and overall vestibular function. If cervicogenic dizziness or cervical proprioceptive dysfunction is contributing alongside BPPV, we address both — which is relevant when positional dizziness has a cervical component or when symptoms persist beyond what the BPPV manoeuvre would explain alone.
Post-manoeuvre, we provide guidance on head position, activity modification, and the self-repositioning exercises (modified Epley or Brandt-Daroff) that can be used if symptoms return before the next appointment.
Please note: The information on this page describes our general clinical approach and is intended for educational purposes only. BPPV can have presentations that overlap with other causes of dizziness, including central neurological causes. New, severe, or atypical dizziness — particularly if accompanied by double vision, severe headache, difficulty walking, slurred speech, or facial numbness — requires urgent medical review. Individual presentations vary, and your assessment and management will be tailored specifically to you. Nothing on this page constitutes clinical advice for your individual situation. Please consult a registered health practitioner for advice about your specific condition.
What Can You Do Right Now?
1. Track your triggers.
BPPV has a characteristic trigger pattern — positional dizziness brought on by specific head movements. Note which positions reliably produce the vertigo (rolling to the left vs right, looking up, sitting up), how long it lasts, and whether it changes throughout the day. This information helps identify the affected canal and guides the assessment.
2. Avoid movements that provoke symptoms while awaiting assessment.
During an active episode, minimising the triggering head movements reduces the number of times the otoconia are displaced through the affected canal. Sleep with the head slightly elevated (using an extra pillow) rather than flat supine, and rise slowly from bed by rolling to your side first.
3. Do not suppress symptoms with over-the-counter antihistamines or motion sickness medication.
Vestibular suppressants reduce the sensation of vertigo but do not move the displaced crystals and may slow the central vestibular adaptation that contributes to recovery. If medication is being used for severe nausea, continue it — but be aware of this limitation.
4. Attend promptly — BPPV typically responds quickly.
BPPV is one of the most treatment-responsive conditions in our scope of practice. Longer symptom duration does not predict a worse outcome, but early treatment is generally preferable to extended avoidance of movement, which can drive secondary deconditioning and anxiety.
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References
- Hilton MP, Pinder DK (2014). The Epley (canalith repositioning) manoeuvre for benign paroxysmal positional vertigo. Cochrane Database of Systematic Reviews, (12), CD003162.
- Bhattacharyya N, Gubbels SP, Schwartz SR, et al. (2017). Clinical Practice Guideline: Benign Paroxysmal Positional Vertigo (Update). Otolaryngology — Head and Neck Surgery, 156(3_suppl), S1–S47.