Hemifacial spasm (HS) causes muscles to contract on one side of the face. They happen without your control.
HS doesn't always have a cause. It may be due to:
- A blood vessel pressing on the facial nerve
- Facial nerve injury
- Bony or other abnormalities that press the nerve
You may have:
- Twitching of the eyelid muscle
- Forced closure of the eye
- Lower face spasms
- Mouth pulled to one side
- Spasms of all the muscles on one side of the face
Your doctor will ask about your symptoms and health history. You may have:
- A physical exam
- Electromyography (EMG)—records eletricity generated in muscle while at work and at rest
- Angiography —uses contrast material to see blood vessels
Pictures of your body may be taken This can be done with:
Talk with your doctor about the best plan for you.
Your doctor may have you take antiseizure medicines. They may help to ease symptoms.
Botulinum toxin may be injected into the muscles. It can stop eyelid spasm for many months. This must be repeated, usually many times a year. This is the main way to treat HS.
You may have surgery to reposition the blood vessel away from the nerve. This is helps people with HS caused by a blood vessel pressing on the facial nerve.
- Reviewer: EBSCO Medical Review Board Rimas Lukas, MD
- Review Date: 05/2018 -
- Update Date: 06/19/2018 -