Diagnostic Parameters , Transient Tic Disorder

Transient Tic Disorder

A tic is a problem in which a part of the body moves repeatedly, quickly, suddenly and uncontrollably. Tics can occur in any body part, such as the face, shoulders, hands or legs.

Sounds that are made involuntarily (such as throat clearing) are called vocal tics. Most tics are mild and hardly noticeable. However, in some cases they are frequent and severe, and can affect many areas of a child's life.

The patient has vocal or motor tics,or both. They can be single or multiple.

For at least 4 weeks but no longer than 12 consecutive months, these tics have occurred many times each day, nearly every day.

These symptoms cause marked distress or materially impair work, social or personal functioning.

They began before age 18.

The symptoms are not directly caused by a general medical condition (such as Huntington's disease or a postviral encephalitis) or to substance use (such as a CNS stimulant).

The patient has never fulfilled criteria for Tourette's Disorder or Chronic Motor or Vocal Tic Disorder.