Bell's Palsy

Picture of how facial muscles are affected by Bell's palsy

Bell's palsy causes paralysis or weakness of the muscles on one side of the face. It results from facial nerve paralysis that causes the affected side of the face to appear flat, expressionless, or droopy. Taste sensation and tear or saliva production can also be affected.

Credits

ByHealthwise Staff
Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine
Specialist Medical ReviewerColin Chalk, MD, CM, FRCPC - Neurology
Last RevisedJuly 20, 2011
By: Healthwise StaffLast Revised: July 20, 2011
Medical Review: Anne C. Poinier, MD - Internal Medicine
Colin Chalk, MD, CM, FRCPC - Neurology

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