Say: BELZ POL-zee
Bell's palsy causes problems with the nerves in a person's face. People who have it might look as if half of their face is frozen or droopy because the nerves and muscles there aren't working. Bell's palsy can be caused by an injury (like getting hit really hard in the face); by the flu or other viruses; by diabetes; or by Lyme disease. It usually goes away quickly.
