What Is Bell's Palsy?
Reviewed: Dr. Gromatzky
2. Causes of Bell’s Palsy
The real cause of Bell’s palsy is unknown. The condition occurs when the facial nerve becomes inflamed, compressed, or swollen. Most researchers believe that viral infections may be the main cause of the nerve damage.
Examples of viral infections that may lead to Bell’s palsy include viral meningitis, herpes simplex infections, and common cold.
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