You might have heard of hemifacial spasm, but you might not know what it is. Hemifacial spasm is a condition that affects the muscles on one side of the face. It can cause the face to cramp or spasm.  The cause of hemifacial spasms is not precisely clear. However, experts believe a problem with the … Continue reading Everything About Hemifacial Spasm: Symptoms, Causes, and Treatments