Dystonia is a movement disorder. With dystonia, a person's muscles contract uncontrollably. The contraction causes the affected body part to twist involuntarily, resulting in repetitive movements or abnormal postures. Dystonia can affect one muscle, a muscle group, or the entire body. Dystonia affects about 1% of the population

What Are the Symptoms of Dystonia?

Symptoms of dystonia can range from very mild to severe. Dystonia can affect different body parts, and often the symptoms of dystonia progress through stages. Some early symptoms include:

• a "dragging leg"
• cramping of the foot
• involuntary pulling of the neck
• uncontrollable blinking
• speech difficulties

Stress or fatigue may bring on the symptoms or cause them to worsen. People with dystonia often complain of pain and exhaustion because of the constant muscle contractions.