A hemifacial spasm is an uncontrollable muscle twitching of one side of the face. Most often seen in middle aged or older women, these spasms are usually caused by facial nerve injury, Bell’s palsy, or tumors.
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A hemifacial spasm is an uncontrollable muscle twitching of one side of the face. Most often seen in middle aged or older women, these spasms are usually caused by facial nerve injury, Bell’s palsy, or tumors.