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Facial paralysis

Bell's palsy is a condition that causes temporary weakness or paralysis of the muscles in one side of the face. It is the most common cause of facial paralysis.
Symptoms of Bell's palsy
The symptoms of Bell's palsy can vary, from a mild numbness of the face, to total paralysis.
Causes of Bell's palsy
Bell’s palsy occurs when the nerve that controls the facial muscles (facial nerve) becomes inflamed or compressed. It is not known what causes the facial nerve to become inflamed, although it is thought that a virus, possibly a herpes virus, may be responsible.
Diagnosing Bell's palsy
There is no specific test to diagnose Bell’s palsy. However, tests can be used to rule out other conditions that cause facial paralysis.
Treating Bell's palsy
Most people recover fully from Bell's palsy without treatment, but there are ways to accelerate the process and reduce the chance of complications.
Complications of Bell's palsy
A number of complications can occur as a result of Bell's palsy, depending on the extent of nerve damage.
See what the doctor sees with Map of Medicine
See what your doctor sees, find out what is happening with your Bell's Palsy treatment and what the next steps might be.