How to Tell Which Ear Is Causing Your BPPV
The Epley maneuver only works when it is performed on the affected side. Doing it on the wrong ear is one of the most common reasons the maneuver fails. Here is the general at-home pattern clinicians use to point to the affected ear before an in-office Dix-Hallpike test.
Which Ear Decision Guide
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Step 1 - Set up safely
Lie flat on a bed with your head hanging slightly off the edge, supported by your hands or a partner. Do this on a wide stable surface, not a couch or narrow mattress.
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Step 2 - Test the right ear
Turn your head 45 degrees to the right and hold that position for 60 seconds.
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Step 3 - Note what happens
If the room starts to spin or you feel intense vertigo within that first minute, the right ear is likely the affected side.
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Step 4 - Reset
Sit up slowly. Wait at least one full minute for symptoms to settle before continuing.
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Step 5 - Test the left ear
Lie back down in the same position and turn your head 45 degrees to the left. Hold for 60 seconds.
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Step 6 - Compare
If the left side produces spinning and the right did not, the left ear is likely the affected side. If both sides trigger spinning, the presentation is not straightforward and needs an in-office evaluation.
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Step 7 - Apply the Epley
Once you have identified the affected ear, perform the Epley maneuver starting on that side. If you are unsure, do not guess. Guessing wrong prolongs the problem.
This at-home pattern is a starting point, not a diagnosis. If symptoms are severe, if both sides trigger equally, or if dizziness lasts longer than a minute per position, stop and have the presentation evaluated in person.
The Epley Maneuver - What It Does and When It Stops Working
The Epley is a sequence of head and body positions that uses gravity to guide displaced crystals out of the posterior semicircular canal and back into the utricle, where they stop triggering false motion signals. Watch the maneuver below.
The Epley works well for posterior canal BPPV, which accounts for most cases. It does not work for horizontal canal BPPV, which requires a different repositioning sequence such as the Gufoni or BBQ roll. It also does not resolve central vestibular dysfunction, which produces similar dizziness but originates in how the brain processes vestibular signals rather than in the inner ear hardware. If the Epley has been performed correctly on the correct side and symptoms remain, one of those two alternate patterns is usually the reason.
What Are Ear Crystals and Why Do They Cause Vertigo
Deep inside each of your inner ears is a tiny structure called the utricle. Sitting on top of it is a small patch coated with hundreds of thousands of microscopic calcium carbonate crystals, called otoconia. Most people just call them ear crystals. They are supposed to be there. They help your brain sense gravity and head tilt.
The problem starts when a few of those crystals break loose from the utricle and drift into one of the semicircular canals nearby. The semicircular canals are fluid-filled loops that sense head rotation. They are not designed to have crystals floating inside them.
When those loose crystals slide through the canal fluid, the fluid moves in a way it normally would not. The tiny sensors inside the canal read that fluid movement as head rotation and send a signal to the brain saying "you are spinning." Your eyes and body know you are not spinning. Your inner ear is telling the brain that you are. The mismatch is what you feel as vertigo.
That is why BPPV symptoms come in short bursts triggered by specific head movements. Rolling over in bed, looking up at a shelf, or bending down to tie your shoes all shift the crystals in the canal, which produces a brief but intense spinning sensation. Once the crystals stop moving, the spinning fades within a minute or so.
The Epley maneuver and other repositioning techniques work by using head position and gravity to guide those loose crystals out of the canal and back onto the utricle where they belong. When it works, the false signal stops. When it does not, either the crystals did not move, they moved to the wrong place, or the source of the dizziness was never the crystals to begin with.
When BPPV Does Not Respond to the Epley Maneuver
If you have performed the Epley maneuver more than a few times and your symptoms have not meaningfully changed, one of three patterns is usually the reason.
1. The wrong ear was identified
The Epley must be performed on the affected side. Starting on the unaffected ear does not reposition anything and often makes the presentation more confusing. When patients are unsure which side is involved, they sometimes rotate through both sides on different days, which can move crystals into positions that are harder to correct.
2. The BPPV is in the horizontal canal
The Epley is designed for the posterior semicircular canal, which is affected in roughly 85 percent of BPPV cases. When the crystals are in the horizontal canal instead, the Epley does not reach them. Horizontal canal BPPV requires a different repositioning sequence such as the Gufoni or the BBQ roll maneuver. Without a proper canal-specific evaluation, that variant is often missed.
3. It was never BPPV to begin with
Central vestibular dysfunction, vestibular migraine, incomplete recovery from vestibular neuritis, and cervical spine involvement can all produce symptoms that resemble BPPV without any loose crystals being present. In those cases, the Epley cannot help because there is nothing to reposition. If this pattern applies to you, our page on vertigo treatment San Diego covers the central vestibular evaluation approach in more depth.
How We Evaluate BPPV and Persistent Dizziness in San Diego
Our evaluation for BPPV and persistent dizziness goes beyond a single positional test. When patients arrive already having tried the Epley without lasting relief, the assessment needs to cover both peripheral and central components so the actual source of the symptoms becomes visible.
We begin with a full Dix-Hallpike sequence on both sides, performed under controlled conditions with observation of the eye movement patterns that identify which canal is involved. When the presentation suggests horizontal canal involvement, we add the supine roll test, which the Dix-Hallpike alone does not detect. Together those two tests map the peripheral inner ear component.
From there, our clinicians perform oculomotor testing that assesses smooth pursuit, saccades, gaze stability, and the vestibulo-ocular reflex. These are the assessments that identify central vestibular contributions to positional dizziness. When those tests reveal abnormalities, the presentation is not straightforward BPPV and the intervention plan changes accordingly.
We also assess cervical spine contribution. The upper cervical spine feeds dense proprioceptive input into the same brainstem circuits that process vestibular signals, so restriction or dysfunction in the neck can produce dizziness patterns that mimic peripheral vertigo. When cervical involvement is present, it is addressed as part of the overall picture.
If the pattern points toward autonomic involvement such as lightheadedness on standing, that usually belongs to POTS rather than BPPV, and the evaluation shifts accordingly. If the dizziness began after a head injury, post- concussion vestibular dysfunction is a separate pathway that we assess with different testing.
This is a more comprehensive assessment than what an ENT or general practice office typically performs, because most of those settings are designed to confirm or rule out peripheral inner ear pathology and do not include the central vestibular or cervical components.
Other Maneuvers for BPPV
Different maneuvers fit different canal variants and different patient tolerances. If the Epley has not resolved your symptoms, one of the alternatives below may be more appropriate.
Semont Maneuver
The Semont uses a rapid side-to-side motion to dislodge crystals from the cupula of the posterior canal, and is often used when the Epley is difficult to tolerate or when cupulolithiasis rather than canalithiasis is suspected.
Half Somersault (Foster) Maneuver
The Half Somersault is a self-administered option that many patients find easier to perform at home without a partner, and is often preferred by patients with limited neck extension tolerance.
Brandt-Daroff Exercises
Brandt-Daroff is a repeated positional exercise rather than a single repositioning sequence, and is typically used when the affected side is unclear or when residual dizziness lingers after a repositioning maneuver has been performed.
BPPV Questions We Hear Most Often in San Diego
These questions come up most often from patients who have already tried the Epley maneuver at home and are still looking for answers.
Our clinical team includes professional members of the Vestibular Disorders Association.