The National Institute of Neurological Disorders and Stroke NINDS conducts and supports research related to hemifacial spasm through grants to major research institutions across the country. Much of this research focuses on better ways to prevent, treat, and ultimately cure neurological disorders, such as hemifacial spasm. Hemifacial spasm is a neuromuscular disorder characterized by frequent involuntary contractions spasms of the muscles on one side hemi- of the face facial. The disorder occurs in both men and women, although it more frequently affects middle-aged or elderly women.
Involuntary Facial Movements (Hemifacial Spasm)
Hemifacial spasm - Wikipedia
Hemifacial spasm is a condition that affects half of your face. It usually starts with a twitching around one eye. It may gradually involve your mouth also. There are different types of treatment. Although the condition is not dangerous, it can affect quality of life. A spasm is a sudden, involuntary contraction of a muscle or a group of muscles. Hemifacial means half of the face.
Hemifacial Spasm Information Page
These tics are usually not painful, although they can be uncomfortable, and they are usually not life-threatening. But they are distressing to the patient, and as the condition worsens the tics can become more and more frequent and intrusive. Hemifacial spasm can affect both men and women, but it is most common in middle-aged and older women; its incidence is also higher among Asian people. Hemifacial spasm is a neuromuscular disorder — meaning that the source of the disorder is a nerve, but the manifestation is the tic, which is a muscular contraction.
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.