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Benign paroxysmal positional vertigo (BPPV)

Illustration copyright 2000 by Nucleus Communications, Inc. All rights reserved. http://www.nucleusinc.com

It is normal to have calcium crystals in your inner ear. However, when the crystals don't move freely in the semicircular canal, they may cause vertigo-a spinning, whirling sensation.

Primary Medical Reviewer Anne C. Poinier, MD
- Internal Medicine
Specialist Medical Reviewer Barrie J. Hurwitz, MD
- Neurology
Last Updated January 29, 2007

WebMD Medical Reference from Healthwise

Last Updated: January 29, 2007
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