Hemifacial Spasm (face Twitching): Types & Treatment | Medanta
January 18, 2023 ⚊ 1 Min read ⚊ Views 168 ⚊ HEALTH
Hemifacial spasm causes involuntary painless twitching on one side of the face due to malfunctioning of the seventh cranial nerve, also known as the facial nerve. It causes the muscles on one side of the face to contract. In its mildest form, the condition may cause no more harm other than slight inconvenience. However, in severe cases, the contractions may interfere with vision. In hemifacial spasm, muscles on one side of the face twitch involuntarily, beginning with the eyelid and then spreading to the cheek and mouth. Twitching may be irregular at first but may become frequent afterwards. The spasms may be caused by an abnormally positioned loop of an artery that compresses the facial cranial nerve where it exits the brainstem. Medical experts have suggested that the condition is caused by disturbances within the facial nerve.
