Facial paralysis

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Facial drooping

Ptosis, drooping of the eyelid

Facial paralysis occurs when a person is no longer able to move some or all of the muscles on one side of the face.

Paralysis of the face

Facial paralysis is almost always caused by:

• Damage or swelling of the facial nerve, which carries signals from the brain to the muscles of the face
• Damage to the area of the brain that sends signals to the muscles of the face

In people who are otherwise healthy, facial paralysis is often due to Bell's palsy, a condition in which the facial nerve becomes inflamed.

Stroke may cause facial paralysis. With a stroke, other muscles on one side of the body may also be involved.

Facial paralysis that is due to a brain tumor usually develops slowly and causes headaches, seizures, or hearing loss.

In newborns, facial paralysis may be caused by trauma during birth.

Other causes include:

• Tumor that presses on the facial nerve
• Infection
• Lyme disease
• Sarcoidosis

Review Date: 02/18/2011
Reviewed By: David C. Dugdale III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

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