What is tic disorder?

A tic is an involuntary, rapid, recurrent, nonrhythmic motor movement (usually involving circumscribed muscle groups) or vocal production that is of sudden onset and that serves no apparent purpose.

How do members experience tic disorder?

*Reports may be affected by other conditions and/or medication side effects. We ask about general symptoms (anxious mood, depressed mood, fatigue, pain, and stress) regardless of condition.