What is a tic?
Motor tic: A quick and sudden movement of any part of the body. It can be an eyelid or a part of the face. It is not done on purpose and can be very difficult to control. It can happen repeatedly (many times after each other).
Vocal tic: Similar to a motor tic; also difficult to control, not purposefully done and repetitive, but it is a sound that is made or a word that is said. It can also occur in the form of humming noises or throat clearing.
Tics are quite common and usually mild; causing little disruption in general functioning.
What is a tic disorder?
Transient Tic Disorder
Children have a large amount of tics, regularly, almost daily, for more than four weeks.
Chronic Tic Disorder
As above, but continuing for more than one year.
Tourette's Syndrome
As above, but tics become more complicated and cause significant ongoing impairment and distress. A history of vocal and motor tics is usually relevant.
Children rarely develop Tourette's Syndrome.
What causes tic disorders?
This has not been established. Genetic factors (runs in families), infections and medication can play a role in triggering tics. Anxiety can also trigger or exacerbate tics.
The onset is often in children age 7-9 and tics affect boys more commonly than girls.
How is a tic disorder diagnosed?
Your GP can refer you to a Child Psychiatrist, who can make the diagnosis, if appropriate, through discussion and observation. They can also rule out other causes for movement disorders.
Comorbidities (conditions that can occur with tic disorders) are also considered, such as:
Developmental disorders
Neurodevelopmental disorders such as ADHD
Anxiety disorders such as OCD
Mood disorders such as Depression
This list is not comprehensive.
How is a tic disorder treated?
Tics often resolve without treatment. In severe cases, medication can be indicated.
Your Child Psychiatrist can offer you advice on treatment.