Bell's Palsy Diagnosis

There is no single test for Bell's palsy. It is diagnosed by ruling other things out, and understanding that process makes the appointment a lot less bewildering.

• How Bell's Palsy Is Diagnosed: What Actually Happens

  Bell's palsy is a diagnosis of exclusion, so there is no single test. What your doctor checks, what House-Brackmann grading means, and when scans are needed.

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• What Is Stage 4 Bell's Palsy? (There Isn't One)

  Bell's palsy has no stages. You have probably read House-Brackmann Grade IV, a severity score. Here is what it means and why the difference matters.

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