Tourette syndrome is a disorder that involves repetitive movements or unwanted sounds (tics) that can't be easily controlled. For instance, you might repeatedly blink your eyes, shrug your shoulders or blurt out unusual sounds or offensive words.Tourette syndrome (TS) is a neurological disorder characterized by repetitive, stereotyped, involuntary movements and vocalizations called tics.It usually starts during childhood, but the tics and other symptoms usually improve after several years and sometimes go away completely. There's no cure for Tourette's syndrome, but treatment can help manage symptoms.Tics can happen randomly and they may be associated with something such as stress, anxiety, tiredness, excitement or happiness. They often start with an unpleasant sensation that builds up in the body until relieved by the tic – known as an urge – although they can sometimes be partly suppressed.