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.
July 20, 2011
Anne C. Poinier, MD - Internal Medicine & Colin Chalk, MD, CM, FRCPC - Neurology
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