What causes hemifacial spasm? Hemifacial spasm can be caused by injury to the facial nerve, a tumor or blood vessel compressing the nerve, or Bell’s palsy. The most common cause is compression of your facial nerve by the anterior inferior cerebellar artery where the nerve begins at your brainstem.Click to see full answer. Subsequently, one may also ask, why does my cheek keep twitching?Hemifacial spasms are often caused by irritation or damage to your facial nerve. This is known as an ephaptic transmission, and it’s one of the main causes of these spasms. An injury to your head or face can also cause hemifacial spasms because of damage or compression of the facial nerve.Furthermore, is face twitching a sign of stroke? Doctors who do not know about functional facial spasm may interpret the symptoms as those of a stroke, even though this is a problem with muscle overactivity not muscle under activity as is typically seen in a stroke. Also to know, how do I get my cheek to stop twitching? But while you’re waiting for your twitch to go away, there are a few practices that might help hasten its departure. Reduce caffeine and alcohol intake. Easier said than done, we know. Eliminate stimulants. Lessen eye irritation. Be more chill. Get enough sleep. Eat foods with magnesium. Does facial twitching go away?Hemifacial spasms are twitching or squeezing of muscles on one side of your face. The spasms are usually painless and you can’t control them. The muscles may twitch even during sleep. They do not go away without treatment.