Tourette (too-RET) 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.
Tics typically show up between ages 2 and 15, with the average being around 6 years of age. Males are about three to four times more likely than females to develop Tourette syndrome.
Although there’s no cure for Tourette syndrome, treatments are available. Many people with Tourette syndrome don’t need treatment when symptoms aren’t troublesome. Tics often lessen or become controlled after the teen years.
Tics — sudden, brief, intermittent movements or sounds — are the hallmark sign of Tourette syndrome. They can range from mild to severe. Severe symptoms might significantly interfere with communication, daily functioning and quality of life.
Tics are classified as:
- Simple tics.These sudden, brief and repetitive tics involve a limited number of muscle groups.
- Complex tics.These distinct, coordinated patterns of movements involve several muscle groups.
Tics can also involve movement (motor tics) or sounds (vocal tics). Motor tics usually begin before vocal tics do. But the spectrum of tics that people experience is diverse.
Common motor tics seen in Tourette syndrome
Touching or smelling objects
Repeating observed movements
Stepping in a certain pattern
Bending or twisting
Common vocal tics seen in Tourette syndrome
Repeating one’s own words or phrases
Repeating others’ words or phrases
Using vulgar, obscene or swear words
In addition, tics can:
- Vary in type, frequency and severity
- Worsen if you’re ill, stressed, anxious, tired or excited
- Occur during sleep
- Change over time
- Worsen in the early teenage years and improve during the transition into adulthood
Before the onset of motor or vocal tics, you’ll likely experience an uncomfortable bodily sensation (premonitory urge) such as an itch, a tingle or tension. Expression of the tic brings relief. With great effort, some people with Tourette syndrome can temporarily stop or hold back a tic.
People with Tourette syndrome often lead healthy, active lives. However, Tourette syndrome frequently involves behavioural and social challenges that can harm your self-image.
Conditions often associated with Tourette syndrome include:
- Attention-deficit/hyperactivity disorder (ADHD)
- Obsessive-compulsive disorder (OCD)
- Autism spectrum disorder
- Learning disabilities
- Sleep disorders
- Anxiety disorders
- Pain related to tics, especially headaches
- Anger-management problems
There’s no specific test that can diagnose Tourette syndrome. The diagnosis is based on the history of your signs and symptoms.
The criteria used to diagnose Tourette syndrome include:
- Both motor tics and vocal tics are present, although not necessarily at the same time
- Tics occur several times a day, nearly every day or intermittently, for more than a year
- Tics begin before age 18
- Tics aren’t caused by medications, other substances or another medical condition
- Tics must change over time in location, frequency, type, complexity or severity
A diagnosis of Tourette syndrome might be overlooked because the signs can mimic other conditions. Eye blinking might be initially associated with vision problems, or sniffling attributed to allergies.
Both motor and vocal tics can be caused by conditions other than Tourette syndrome. To rule out other causes of tics, your doctor might recommend:
- Blood tests
- Imaging studies such as an MRI
There’s no cure for Tourette syndrome. Treatment is aimed at controlling tics that interfere with everyday activities and functioning. When tics aren’t severe, treatment might not be necessary.
Medications to help control tics or reduce symptoms of related conditions include:
- Medications that block or lessen dopamine.Fluphenazine, haloperidol (Haldol), risperidone (Risperdal) and pimozide (Orap) can help control tics. Possible side effects include weight gain and involuntary repetitive movements. Tetrabenazine (Xenazine) might be recommended, although it may cause severe depression.
- Botulinum (Botox) injections.An injection into the affected muscle might help relieve a simple or vocal tic.
- ADHD medications.Stimulants such as methylphenidate (Metadate CD, Ritalin LA, others) and medications containing dextroamphetamine (Adderall XR, Dexedrine, others) can help increase attention and concentration. However, for some people with Tourette syndrome, medications for ADHD can exacerbate tics.
- Central adrenergic inhibitors.Medications such as clonidine (Catapres, Kapvay) and guanfacine (Intuniv) — typically prescribed for high blood pressure — might help control behavioral symptoms such as impulse control problems and rage attacks. Side effects may include sleepiness.
- Fluoxetine (Prozac, Sarafem, others) might help control symptoms of sadness, anxiety and OCD.
- Antiseizure medications.Recent studies suggest that some people with Tourette syndrome respond to topiramate (Topamax), which is used to treat Epilepsy treatment .
- Behavior therapy.Cognitive Behavioral Interventions for Tics, including habit-reversal training, can help you monitor tics, identify premonitory urges and learn to voluntarily move in a way that’s incompatible with the tic.
- In addition to helping you cope with Tourette syndrome, psychotherapy can help with accompanying problems, such as ADHD, Obsession depression or anxiety.
- Deep brain stimulation (DBS).For severe tics that don’t respond to other treatment, DBS might help. DBS involves implanting a battery-operated medical device in the brain to deliver electrical stimulation to targeted areas that control movement. However, this treatment is still in the early research stages and needs more research to determine if it’s a safe and effective treatment for Tourette syndrome.