What is BPPV and what causes it?
B Benign – not dangerous
P Paroxysmal – builds up to a peak and then disappears
P Positional – triggered by a positional change of the head
V Vertigo – abnormal sensation of movement or room spinning
BPPV starts in the inner ear. Every person has small crystals of calcium carbonate in the inner ear called otoconia. Sometimes these crystals can become dislodged and end up in the fluid of the semi-circular canals. This causes abnormal stimulation of nerve endings which causes symptom of vertigo and nausea.