Vertigo and BPPV: causes, red flags and treatment

Vertigo is the false feeling that you or the room are spinning, and BPPV is one of the commonest treatable causes. BPPV causes short bursts of spinning when head position changes, such as rolling over in bed, looking up or bending down. The important job is to separate typical BPPV, which often responds to repositioning manoeuvres, from vertigo that could be stroke, sudden hearing loss, infection, migraine, Meniere's disease or another condition needing urgent care.¹²

Vertigo vs dizziness

People use "dizzy" to mean several different things: spinning, light-headedness, faintness, imbalance, floating, brain fog or feeling detached. Vertigo is the spinning version. It often feels as if the room moves when your eyes and muscles say you are still. That mismatch can trigger nausea, sweating, panic, unsteadiness and fear of falling.

The description matters because different sensations point to different systems. Spinning with head movement suggests an inner-ear or vestibular cause. Faintness on standing may be blood pressure, dehydration, heart rhythm, anaemia or medicine-related. Imbalance without spinning may be neurological, vision-related, neuropathy-related or medication-related. A good appointment starts by naming the sensation as precisely as possible.

What BPPV is

BPPV stands for benign paroxysmal positional vertigo. "Benign" means it is not cancer or a progressive brain disease. "Paroxysmal" means it comes in attacks. "Positional" means head position triggers it. InformedHealth explains that BPPV is caused by loose calcium deposits, sometimes described as crystals, moving into part of the inner-ear balance system where they do not belong.⁵

The classic pattern is sudden spinning when turning in bed, lying back, sitting up, tipping the head back at the hairdresser or dentist, or bending to tie shoes. The spin is usually intense but brief. People often feel nauseous or unsteady afterwards, and some become afraid to move normally. That fear is understandable, but complete avoidance can slow recovery because the balance system needs graded movement once dangerous causes are excluded.

BPPV is usually diagnosed by the story plus positional testing. It is not diagnosed by a blood test or standard brain scan. The key is whether a specific position triggers vertigo and a characteristic eye movement called nystagmus. Different semicircular canals can be involved, which is one reason the right manoeuvre matters. Posterior canal BPPV is the common pattern treated by the Epley manoeuvre.

Red flags

The safest rule is simple: new vertigo with neurological symptoms is not routine BPPV until proven otherwise. NHS guidance says to call 999 or go to A&E for vertigo with double vision or loss of vision, hearing loss, trouble speaking, or leg or arm weakness, numbness or tingling.¹ Severe headache, repeated vomiting, high temperature or feeling hot, cold or shivery warrants urgent GP or NHS 111 help.¹

Sudden hearing loss is another key warning sign. NICE hearing-loss guidance says adults with sudden onset hearing loss over 3 days or less, within the past 30 days, should be referred immediately to be seen within 24 hours by ENT or an emergency department if it is not explained by outer or middle ear causes.³ Do not assume sudden hearing loss plus vertigo is just wax or BPPV.

Tests and diagnosis

A GP or clinician should ask when the vertigo started, whether it is spinning or faintness, how long attacks last, what triggers them, whether hearing changed, whether tinnitus or ear fullness is present, whether there is headache or migraine history, whether there are neurological symptoms, recent infection, head injury, new medicines, falls risk and driving or work safety issues.

For suspected BPPV, the Dix-Hallpike or Hallpike manoeuvre is the usual positional test. NICE quality standards say adults with transient rotational vertigo on head movement should have the Hallpike manoeuvre performed by a healthcare professional trained in its use.² This matters because the test can provoke strong vertigo and nausea, and it may not be safe for everyone, such as people with severe neck problems, unstable spine disease or certain vascular risks.

If BPPV is not clear, further assessment depends on the pattern. Hearing symptoms may need audiology or ENT. Persistent imbalance may need vestibular assessment or physiotherapy. Vertigo with migraine features may need migraine management. Faintness may need lying and standing blood pressure, ECG, blood tests or medicine review. A scan is not automatically useful for typical BPPV, but it may be needed when symptoms are atypical or neurological.

Treatment options

BPPV often improves, but treatment can speed recovery. InformedHealth says that in about half of people with BPPV, symptoms go away after 1 to 3 months without treatment, but repositioning manoeuvres can help when symptoms are hard to cope with or do not settle.⁵

The best-known treatment is the Epley manoeuvre, a sequence of head and body positions designed to move loose crystals out of the posterior semicircular canal. The Cochrane review found evidence that Epley is a safe and effective treatment for posterior canal BPPV, based on 11 mostly small randomised trials with short follow-up, and noted no serious adverse effects, although nausea during treatment was reported and some people could not tolerate manoeuvres because of cervical spine problems.⁴

That does not mean everyone should copy a video immediately. If the diagnosis is wrong, the canal is different, the side is wrong, or there are red flags, repeated home manoeuvres can waste time or make symptoms frightening. A clinician, audiologist or vestibular physiotherapist can confirm the pattern, perform the correct manoeuvre, teach a safe home version when appropriate, and adjust for neck, back or mobility limits.

For vestibular neuritis or labyrinthitis, the early phase may need nausea control and short-term vestibular suppressant medicine, but long-term reliance on sedating tablets can slow compensation. For persistent imbalance after an inner-ear event, vestibular rehabilitation can help the brain recalibrate. The NIDCD describes vestibular rehabilitation as individualised exercises developed by a trained therapist for balance disorders.⁶

Recovery plan

During an attack, sit or lie still somewhere safe, keep the room calm, use support when walking, and avoid driving or risky tasks. NHS guidance suggests lying still in a quiet dark room, moving the head carefully, sitting down straight away when dizzy, using lights at night, using a walking stick if at risk of falling, and getting out of bed slowly.¹

After the worst spinning settles, avoid becoming completely still for days unless a clinician has told you to. With many vestibular conditions, gentle movement helps the brain adapt. For BPPV, canalith repositioning is specific and may be more useful than generic balance exercises at first. For ongoing imbalance, vestibular rehabilitation is more targeted than random YouTube exercises.

The health library can help you compare vertigo with migraine, tinnitus, sleep problems, anxiety, low blood pressure and medication side effects. If you are preparing for care, start here and write a short timeline. Use insights for exaggerated supplement or device claims, and the stack builder if antihistamines, sedatives, migraine medicines or supplements are stacking up.

This article is educational and does not constitute medical advice, diagnosis, or a treatment recommendation. Medication uses described as “off-label” are not licensed for that purpose in the UK and should only be considered under qualified clinical supervision. Always speak to your GP, pharmacist, or a registered specialist before starting, stopping, or changing any treatment. If you have severe or alarm symptoms - unintentional weight loss, blood in your stool, difficulty swallowing, persistent vomiting, a fever, or severe pain - seek urgent medical care.