Hemifacial spasm

Get in touch with RARE Concierge.

Contact RARE Concierge

Hemifacial spasm

Synonyms: Facial hemispasm | Focal myoclonus of face

A rare primary myoclonus characterized by progressive involuntary irregular clonic or tonic contractions of the muscles innervated by the facial nerve (cranial nerve VII). The symptoms are typically strictly unilateral mostly persist during sleep and often occur in the region of the orbicularis oculi muscle first and gradually spread to other parts of the affected half of the face as the disease progresses. Both familial and acquired forms are reported.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.

Reference: Access aggregated data from Orphanet at Orphadata.

Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version March 2024

Newly diagnosed with
Hemifacial spasm?

Our RARE Concierge Services Guides are available to assist you by providing information, resources and connections as you navigate your rare disease journey.

Get Concierge Help

Advocacy Organizations

Clinical Trials

For a list of clinical trials in this disease area, please click here.