Georges Gilles de la Tourette described symptoms in 1884.
 It is no longer considered rare; about 1% of school-age children and adolescents are estimated to have Tourette's, and coprolalia occurs only in a minority
 There are no specific medical or screening tests that can be used to diagnose Tourette's; the diagnosis is usually made based on observation of the individual's symptoms and family history, and after ruling out secondary causes of tic disorders (tourettism)

