Facial paralysis
Paralysis of the faceFacial paralysis occurs when a person is no longer able to move some or all of the muscles on one or both sides of the face.
Causes
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 palsy. This is a condition in which the facial nerve becomes inflamed.
Bell palsy
Bell palsy is a disorder of the nerve that controls movement of the muscles in the face. This nerve is called the facial or seventh cranial nerve. D...

Stroke may cause facial paralysis. With a stroke, other muscles on one side of the body may also be involved.
Stroke
A stroke occurs when blood flow to a part of the brain stops. A stroke is sometimes called a "brain attack. " If blood flow is cut off for longer th...

Facial paralysis that is due to a brain tumor usually develops slowly. Symptoms can include headaches, seizures, or hearing loss.
In newborns, facial paralysis may be caused by trauma during birth.
Other causes include:
- Infection of the brain or surrounding tissues
- Lyme disease
Lyme disease
Lyme disease is a bacterial infection that is spread through the bite of one of several types of ticks.
ImageRead Article Now Book Mark Article - Sarcoidosis
Sarcoidosis
Sarcoidosis is a disease in which inflammation occurs in the lymph nodes, lungs, liver, eyes, skin, and/or other tissues.
ImageRead Article Now Book Mark Article - Tumor that presses on the facial nerve
Home Care
Follow your health care provider's instructions on how to take care of yourself at home. Take any medicines as directed.
If the eye cannot fully close, the cornea must be protected from drying out with prescription eye drops or gel.
When to Contact a Medical Professional
Call your provider if you have weakness or numbness in your face. Seek emergency medical help right away if you have these symptoms along with a severe headache, seizure, or blindness.
Blindness
Blindness is a lack of vision. It may also refer to a loss of vision that cannot be corrected with glasses or contact lenses. Partial blindness mean...

What to Expect at Your Office Visit
The provider will perform a physical exam and ask questions about your medical history and symptoms, including:
- Are both sides of your face affected?
- Have you recently been sick or injured?
- What other symptoms do you have? For example, drooling, excessive tears from one eye, headaches, seizures, vision problems, weakness, or paralysis.
Vision problems
There are many types of eye problems and vision disturbances, such as: Halos Blurred vision (the loss of sharpness of vision and the inability to see...
ImageRead Article Now Book Mark ArticleParalysis
Muscle function loss is when a muscle does not work or move normally. The medical term for complete loss of muscle function is paralysis.
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Tests that may be ordered include:
- Blood tests, including blood sugar, CBC, (ESR), Lyme test
CBC,
A complete blood count (CBC) test measures the following:The number of white blood cells (WBC count)The number of red blood cells (RBC count)The numb...
ImageRead Article Now Book Mark Article - CT scan of the head
CT scan of the head
A head computed tomography (CT) scan uses many x-rays to create pictures of the head, including the skull, brain, eye sockets, and sinuses.
ImageRead Article Now Book Mark Article - Electromyography
Electromyography
Electromyography (EMG) is a test that checks the health of the muscles and the nerves that control the muscles.
ImageRead Article Now Book Mark Article - MRI of the head
MRI of the head
A head MRI (magnetic resonance imaging) is an imaging test that uses powerful magnets and radio waves to create pictures of the brain and surrounding...
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Treatment depends on the cause. Follow your provider's treatment recommendations.
The provider may refer you to a physical, speech, or occupational therapist. If facial paralysis from Bell palsy lasts for more than 6 to 12 months, plastic surgery may be recommended to help the eye close and improve the appearance of the face.
References
Mattox DE, Vivas EX. Clinical disorders of the facial nerve. In: Flint PW, Francis HW, Haughey BH, et al, eds. Cummings Otolaryngology: Head & Neck Surgery. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 172.
Meyers SL. Acute facial paralysis. In: Kellerman RD, Rakel DP, eds. Conn's Current Therapy 2021. Philadelphia, PA: Elsevier; 2021:695-696.
Smith G, Shy ME. Peripheral neuropathies. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 392.
Ptosis - drooping of the eyelid - illustration
Drooping of the eyelid is called ptosis. Ptosis may result from damage to the nerve that controls the muscles of the eyelid, problems with the muscle strength (as in myasthenia gravis), or from swelling of the lid.
Ptosis - drooping of the eyelid
illustration
Facial drooping - illustration
Facial drooping can be caused by a disorder such as Bell's palsy. This disorder is a mononeuropathy (involvement of a single nerve) that damages the seventh cranial (facial) nerve. The facial nerve controls movement of the muscles of the face.
Facial drooping
illustration
Ptosis - drooping of the eyelid - illustration
Drooping of the eyelid is called ptosis. Ptosis may result from damage to the nerve that controls the muscles of the eyelid, problems with the muscle strength (as in myasthenia gravis), or from swelling of the lid.
Ptosis - drooping of the eyelid
illustration
Facial drooping - illustration
Facial drooping can be caused by a disorder such as Bell's palsy. This disorder is a mononeuropathy (involvement of a single nerve) that damages the seventh cranial (facial) nerve. The facial nerve controls movement of the muscles of the face.
Facial drooping
illustration
- Skin wrinkles and blemishes(In-Depth)
- Stroke(In-Depth)
- Shingles and chickenpox (Varicella-zoster virus)(In-Depth)
- Ear infections(In-Depth)
- Migraine headaches(In-Depth)
- Lyme disease and related tick-borne infections(In-Depth)
- Herpes simplex(In-Depth)
- Parkinson disease(In-Depth)
Review Date: 1/16/2021
Reviewed By: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.