9 doctors weighed in:

What causes bell's palsy?

9 doctors weighed in
Dr. David Astrachan
ENT - Head & Neck Surgery
6 doctors agree

In brief: Viral infection

Bell's palsy is one reason people develop facial paralysis.
True bell's palsy is felt to be caused by a viral infection of the facial nerve leading to swelling of the nerve and damage to it caused by decreased blood flow. Steroids are very helpful in treating this. Some people incorrectly term facial paralysis "bell's palsy." this is not correct, you must exclude other causes of facial paralysis.

In brief: Viral infection

Bell's palsy is one reason people develop facial paralysis.
True bell's palsy is felt to be caused by a viral infection of the facial nerve leading to swelling of the nerve and damage to it caused by decreased blood flow. Steroids are very helpful in treating this. Some people incorrectly term facial paralysis "bell's palsy." this is not correct, you must exclude other causes of facial paralysis.
Dr. David Astrachan
Dr. David Astrachan
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Dr. Gregory Levitin
ENT - Head & Neck Surgery
1 doctor agrees

In brief: Presumed viral

Bell's palsy is a diagnosis of exclusion; this manifests as partial to complete facial nerve paralysis.
This should be evaluated by an ENT doctor as soon as possible to determine whether any treatment is indicated, such as oral steroids, antivirals, or eye care. Bell's palsy is often seen after an acute viral illness, but other causes should be ruled out as well.

In brief: Presumed viral

Bell's palsy is a diagnosis of exclusion; this manifests as partial to complete facial nerve paralysis.
This should be evaluated by an ENT doctor as soon as possible to determine whether any treatment is indicated, such as oral steroids, antivirals, or eye care. Bell's palsy is often seen after an acute viral illness, but other causes should be ruled out as well.
Dr. Gregory Levitin
Dr. Gregory Levitin
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Dr. John Hoffmann
Surgery - Plastics

In brief: Unknown

The exact cause of bells palsy is unknown but it is thought that it may be due to a viral infection in the facial nerve.

In brief: Unknown

The exact cause of bells palsy is unknown but it is thought that it may be due to a viral infection in the facial nerve.
Dr. John Hoffmann
Dr. John Hoffmann
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