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bell's palsy

facial muscles 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.

current as of: december 20, 2023

author: healthwise staff
clinical review board
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