The Epley Manoeuvre Explained: How It Works for BPPV

What is the Epley manoeuvre?

The Epley manoeuvre is a canalith repositioning technique used to treat BPPV (Benign Paroxysmal Positional Vertigo) — the most common cause of vertigo. Developed by Dr. John Epley in 1980, it is a series of guided head and body movements that relocate displaced calcium carbonate crystals (otoconia) within the inner ear.

BPPV occurs when these tiny crystals dislodge from the utricle and drift into one of the semicircular canals, most often the posterior canal. Once trapped there, they disrupt the normal fluid movement that your brain relies on to sense head position. The result is brief but intense episodes of spinning vertigo triggered by everyday movements like rolling over in bed, tilting your head back, or bending forward.

The Epley manoeuvre is the gold-standard treatment for posterior canal BPPV and is the most widely studied repositioning technique in vestibular therapy.

How it works: the crystal repositioning concept

Your inner ear contains three semicircular canals filled with fluid. At the base of each canal sits a sensor that detects rotational head movements. When displaced crystals settle in a canal, they shift the fluid abnormally during certain head positions, sending false motion signals to your brain. Your brain interprets these signals as spinning — even though you are stationary.

The Epley manoeuvre uses gravity and a specific sequence of head positions to guide the crystals through the affected canal and back into the utricle, where they can be naturally reabsorbed. Each position change moves the crystals a little further along the canal until they exit into a part of the inner ear where they no longer cause symptoms.

Step-by-step overview

The Epley manoeuvre involves four sequential head position changes, each held for roughly 30 to 60 seconds. The general sequence is:

1. Starting position — You sit upright on the treatment table while your physiotherapist turns your head 45 degrees toward the affected side.
2. Lying back — You are quickly guided onto your back with your head hanging slightly below the level of the table, still turned to the affected side.
3. Opposite side rotation — Your head is slowly rotated to face the opposite direction while you remain lying down.
4. Side-lying turn — You roll onto your side, with your head angled downward toward the floor.
5. Return to upright — You are brought back to a seated position while your therapist monitors your response.

Before performing the Epley manoeuvre, your physiotherapist will conduct a thorough vestibular assessment — including the Dix-Hallpike test — to confirm the diagnosis, identify which ear and canal are involved, and rule out other causes of vertigo. Accurate diagnosis is essential because the wrong manoeuvre can move crystals further into the canal or into an adjacent canal, potentially worsening symptoms.

This is why professional assessment should always come first. The manoeuvre itself looks simple, but knowing which ear to treat and confirming the canal variant requires clinical expertise.

What to expect during treatment

It is completely normal to experience vertigo during the Epley manoeuvre — in fact, brief vertigo at certain positions confirms that the crystals are moving. Your physiotherapist will watch your eye movements (nystagmus) at each stage to verify that the crystals are travelling in the right direction.

Some patients also experience mild nausea during the procedure, particularly at the second position when the head is reclined. This typically passes within a few seconds once the position is held steady. In rare cases, the nausea can be more pronounced, but your therapist will pace the treatment to keep you as comfortable as possible.

The entire procedure usually takes about 10 to 15 minutes.

After the treatment

Following the Epley manoeuvre, your physiotherapist may provide post-treatment guidance to help prevent the crystals from migrating back into the canal. Common recommendations include:

• Sleep semi-upright or on the unaffected side for the first one to two nights after treatment. For more detailed advice, see our guide on sleeping positions for BPPV.
• Avoid rapid head movements and positions that provoked your vertigo for 24 to 48 hours.
• Take care with bending and looking up for the first day or two, as these positions may temporarily reproduce mild unsteadiness.

Some patients feel slightly off-balance or "foggy" for a day or two after treatment, even after the vertigo has resolved. This is a normal adjustment period as your brain recalibrates to the corrected signals from your inner ear.

How effective is the Epley manoeuvre?

Research consistently shows that the Epley manoeuvre resolves posterior canal BPPV in approximately 85 to 90 percent of patients within one to three treatment sessions. Many patients notice a significant improvement — or complete resolution — after a single visit.

If symptoms persist after the first session, a repeat manoeuvre at a follow-up appointment typically resolves the remaining cases. Your physiotherapist at Burlington Vestibular Therapy will re-test you at each visit to confirm whether the crystals have been successfully repositioned.

Modified Epley for home use

In some cases, your physiotherapist may teach you a modified version of the Epley manoeuvre to perform at home. The home version follows the same positional sequence but is adapted so you can do it safely on your own bed.

A home Epley is most appropriate when:

• Your diagnosis has been confirmed by a vestibular physiotherapist.
• You have a history of BPPV recurrences and can recognise the familiar symptoms.
• Your therapist has observed you performing the manoeuvre correctly in the clinic.

A home Epley is not a substitute for an initial professional assessment. Performing a repositioning manoeuvre without a confirmed diagnosis risks treating the wrong canal or the wrong ear, which can make symptoms worse. Always have your first episode assessed in the clinic before attempting any home-based technique.

When the Epley manoeuvre is not enough

The Epley manoeuvre is designed specifically for posterior canal BPPV. While this is the most common canal variant, crystals can also migrate into the horizontal (lateral) canal or, less frequently, the anterior canal. Each variant produces a different pattern of nystagmus and requires a different repositioning technique.

Other manoeuvres your physiotherapist may use include:

• Semont manoeuvre — an alternative for posterior canal BPPV, particularly when the Epley is not tolerated.
• BBQ roll (Lempert manoeuvre) — used to treat horizontal canal BPPV.
• Gufoni manoeuvre — another option for horizontal canal variants.

If BPPV recurs frequently or does not respond to repositioning, further investigation may be needed to identify contributing factors such as vitamin D deficiency, head trauma history, or inner ear degeneration. Your physiotherapist can guide you through the appropriate next steps.

Get the right diagnosis first

The Epley manoeuvre is one of the most effective treatments in all of physiotherapy — but only when applied to the right condition, the right ear, and the right canal. At Burlington Vestibular Therapy, our vestibular assessment identifies exactly what is causing your vertigo so we can match you with the correct treatment from the start.

No referral is needed. Book your vestibular assessment or call us at 905-635-5711.