Involunatary facial muscle contractures
Hemifacial Spasm (HFS)
Hemifacial Spasm: Symptoms, Treatments, and Causes
Hemifacial spasm is a type of movement disorder that occurs when the facial nerve is compressed or irritated. It is characterized by very rapid, abnormal contractions of the muscles on one side of the face. Hemifacial spasm may be caused by a facial nerve injury, a tumor, or it may have no apparent cause. If there is no apparent cause, doctors may call the condition idiopathic of unknown cause hemifacial spasm.
Hemifacial spasm HFS is a rare neuromuscular disease characterized by irregular, involuntary muscle contractions spasms on one side hemi- of the face -facial. This disease takes two forms: typical and atypical. In typical form, the twitching usually starts in the lower eyelid in orbicularis oculi muscle. As time progresses, it spreads to the whole lid, then to the orbicularis oris muscle around the lips, and buccinator muscle in the cheekbone area.
Hemifacial spasm HFS is an involuntary twitching or contraction of the facial muscles on one side of the face. Medication, surgery, and Botox injections are treatment options to stop the spasms and relieve the discomfort. Each treatment offers benefits, but each has limitations. You and your doctor should determine which treatment is best.