Periodic changes in the number, frequency, type, and location of the tics, with waxing and waning of their severity. Onset before the age of 18. There is no typical case of Tourette Syndrome. Symptoms can come and go and change in expression. Tics A tic can be any repetitive, involuntary movement or vocalization.
Symptoms change in a given individual over time.
Tics Humming, sniffling, throat clearing, tongue clicking, whistling, yelping. Copropraxia Copropraxia is a rare, complex motor tic characterized by involuntary obscene gestures or movements, such as using a middle finger gesture. Coprolalia Coprolalia is a rare, complex vocal tic characterized by involuntary cursing, obscenities, or ethnic slurs.