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What causes benign paroxysmal positional vertigo?

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Inside your ear are tiny crystals of calcium carbonate. You might think of them as “ear rocks.” They’re also called “otoconia.” Sometimes the crystals come loose from their normal spot in your ear and move to other areas, including the canals in your ears that sense your head’s rotation. Once there, they can clump together. Because the clump is heavy compared with other things in your ear, it will sink to the lowest part of your inner ear. When you turn or change position, the clump will cause the fluid in your inner ear to slosh around after you’ve stopped moving. That creates the sense that you’re moving even though you are still.

SOURCES:

Mayo Clinic: “Diseases and Conditions -- Benign paroxysmal positional vertigo.”

Vestibular Disorders Association: “BPPV.”

American Hearing Research Foundation: “Benign Paroxysmal Positional Vertigo.”

Johns Hopkins Medicine: “Diseases and Conditions -- Benign paroxysmal positional vertigo.”

Cleveland Clinic: “Diseases and Conditions --  Benign Paroxysmal Positional Vertigo.”

National Organization for Rare Disorders: “Benign Paroxysmal Positional Vertigo.”

Reviewed by Neil Lava on November 12, 2016

SOURCES:

Mayo Clinic: “Diseases and Conditions -- Benign paroxysmal positional vertigo.”

Vestibular Disorders Association: “BPPV.”

American Hearing Research Foundation: “Benign Paroxysmal Positional Vertigo.”

Johns Hopkins Medicine: “Diseases and Conditions -- Benign paroxysmal positional vertigo.”

Cleveland Clinic: “Diseases and Conditions --  Benign Paroxysmal Positional Vertigo.”

National Organization for Rare Disorders: “Benign Paroxysmal Positional Vertigo.”

Reviewed by Neil Lava on November 12, 2016

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What can trigger benign paroxysmal positional vertigo?

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