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Chronic motor tic disorder

  • Definition

    Chronic motor tic disorder involves quick, uncontrollable movements or vocal outbursts (but not both).

    Alternative Names

    Chronic vocal tic disorder; Tic - chronic motor tic disorder

    Causes, incidence, and risk factors

    About 1 to 2% of the population has chronic motor tic disorder. The condition is more common than Tourette syndrome. However, it is not as common as transient tic disorder.

    Chronic tics may be forms of Tourette syndrome.