Benign Paroxysmal Positional Vertigo (BPPV)
Benign Paroxysmal Positional Vertigo (or BPPV) is the most common cause of vertigo, which is a false sensation of spinning.
– Benign – it is not life-threatening
– Paroxysmal – it comes in sudden, brief spells
– Positional – it gets triggered by certain head positions or movements
– Vertigo – a false sense of rotational movement
BPPV is a mechanical problem in the inner ear. It occurs when some of the calcium carbonate crystals (otoconia) that are normally embedded in gel in the utricle become dislodged and migrate into one or more of the 3 fluid-filled semicircular canals, where they are not supposed to be. When enough of these particles accumulate in one of the canals they interfere with the normal fluid movement that these canals use to sense head motion, causing the inner ear to send false signals to the brain.