6 doctors weighed in:
What causes bell's palsy?
6 doctors weighed in

Dr. John Hoffmann
Surgery - Plastics
3 doctors agree
In brief: Probably a virus
Bell's palsy is weakness of the facial muscles.
It is considered by many to be caused by a viral infection of the facial nerve - although that is not certain. It is important to rule out other causes of facial paralysis such a tumor growth or a stroke before arriving at the diagnosis of bell's palsy. Anyone with facial weakness or paralysis should have a complete medical evaluation by a specialist.

In brief: Probably a virus
Bell's palsy is weakness of the facial muscles.
It is considered by many to be caused by a viral infection of the facial nerve - although that is not certain. It is important to rule out other causes of facial paralysis such a tumor growth or a stroke before arriving at the diagnosis of bell's palsy. Anyone with facial weakness or paralysis should have a complete medical evaluation by a specialist.
Dr. John Hoffmann
Dr. John Hoffmann
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Holly Barth
General Practice
2 doctors agree
In brief: Facial Nerve Damage
Bell's palsy is caused by damage to the facial nerve (cranial nerve vii).
Frequently the cause is idiopathic and resolves on its own. Other causes can be tumors, lyme disease, HIV infection, sarcoidosis, stroke or multiple sclerosis.

In brief: Facial Nerve Damage
Bell's palsy is caused by damage to the facial nerve (cranial nerve vii).
Frequently the cause is idiopathic and resolves on its own. Other causes can be tumors, lyme disease, HIV infection, sarcoidosis, stroke or multiple sclerosis.
Holly Barth
Holly Barth
Answer assisted by Holly Barth, Medical Student
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