Vertigo & Dizziness
What Are The Symptoms of BPPV?John Miller
BPPV SymptomsThe symptoms of BPPV can include:
- Sudden episodes of violent vertigo.
- Dizziness and/or nausea.
- Movements of your head trigger vertigo.
- Your vertigo may last half a minute or more.
- Your eyes may drift and flick uncontrollably (nystagmus).
What Causes BPPV?Inside your inner ear, there is a series of canals filled with fluid. These vestibular canals are at different angles. When your head is moved, the rolling of the fluid inside these vestibular canals tells the brain exactly how far, how fast and in what direction your head is moving. BPPV is caused by little ‘ear rocks’ or otoconia (calcium carbonate crystals) within the vestibular canals. Usually, these crystals are held in special reservoirs within other structures of the inner ear (saccule and utricle). It is thought that injury or degeneration of the utricle may allow the ‘ear rocks’ to dislodge and escape into the balance organ and interfere with your vestibular system.
What Causes Your ‘Ear Rocks’ to Dislodge?Factors that may cause or allow ‘ear rocks’ to migrate into your vestibular canals include:
- Head or ear injury.
- Ear surgery or ear infection, such as otitis media.
- Degeneration of the inner ear structures.
- Vestibular neuritis (viral infection of the inner ear).
- Meniere’s disease (a disorder of the inner ear).
- Some types of minor strokes.