Which are the signs and symptoms of hemifacial spasm?

Updated: Sep 16, 2019
  • Author: Steven Gulevich, MD; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
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Answer

Involuntary facial movement is the only symptom of hemifacial spasm. Fatigue, anxiety, or reading may precipitate the movements. Spontaneous hemifacial spasm manifests with facial spasms that represent myoclonic jerks and are analogous to segmental myoclonus, which may affect other body regions. Postparalytic hemifacial spasm, following facial nerve trauma such as Bell's palsy, manifests as facial synkinesis and contracture.


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