10 Symptoms of Huntington's Disease

3. Chorea

Huntington's disease leads to involuntary movements called "chorea," which also impairs voluntary movement. This disease is the most common inherited cause of the symptom. Chorea describes semi-purposeful, dance-like, erratic movements and is one of the earliest symptoms of the disease. It manifests initially as uncontrollable facial twitches, jerky limb movements, clumsiness, loss of coordination and balance, and abnormal eye movements. Later, the muscles become more rigid, and the individual starts to experience abnormal posture and writhing movements. Chorea is less common in the advanced stages as the muscles become more rigid and movement becomes more difficult.