1. Only 10% of the people with TS have no other associated disorders. This is called pure-TS or TS-only.
2. Though rare, some people with TS have a palatal tic. This tic involves the soft palate moving while simultaneously hearing a clicking sound.
3. While TS is genetic and occurs across all cultures, some differences have been noted between cultures with regard to certain accompanying conditions like anxiety, depression, LD, impulse control, aggression, ODD, and conduct disorder.
4. Coprolalia (socially inappropriate language) and copropraxia (socially inappropriate movement or gestures) are not unique to Tourette Syndrome. They appear in other conditions including following a stroke, Lesch-Nyhan Syndrome, epilepsy, and fronto-temporal dementia.
5. People with TS are more like to have a premonitory sensation (meaning a feeling or physical indication that the tic is about to happen) for complex vocal and motor tics. Complex tics involve multiple muscle groups or more elaborate speech, whereas simple tics are sounds or single-muscle movements.
6. People who have coprolalia and or copropraxia are more likely to have severe tics and associated conditions.
7. A 2015 study found that conduct disorder is not an integral part of Tourette. Conduct disorder is a behaviour disorder where children or youth go against the rules or other people’s rights (e.g., being aggressive, bullying, damaging property on purpose, stealing, breaking serious rules). Conduct disorder, according to this study, can occur in people with TS but this is related to the presence of ADHD and a family history of aggressive and violent behaviour.
8. Depression, which is common among people with TS, is a lifetime risk for 10% of people with TS. Depending on the study, between 2-9% of people with TS have depression.
9. Some people with TS can have retching or vomiting tics.
10. Tourette Syndrome, which is present in 1% of the population, affects more people than Epilepsy (0.6% of the population), Multiple Sclerosis (between 1 per 500 people and 1 in 1000), and HIV (308 per 100,000).