There are many types of tic. Some affect body movement (motor tics) and others result in a sound (vocal or phonic tics).
Examples of tics include:
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.
Read more about common types of tics.
Tics are not usually serious and they do not damage the brain.
You do not always need to see a GP if they're mild and not causing problems. Sometimes they can disappear as quickly as they appear.
See a GP if you're concerned about your or your child's tics, you need support or advice, or the tics:
A GP should be able to diagnose a tic from a description of it and, if possible, seeing it. Recording a short video can be helpful, but be careful not to draw too much attention to the tic while filming as this can make it worse.
Treatment is not always needed if a tic is mild and is not causing any other problems. Self-help tips, such as avoiding stress or tiredness, are often very helpful for the majority of people.
If a tic is more severe and is affecting everyday activities, therapies that aim to reduce how often tics occur may be recommended.
The main therapies for tics are:
There are also medicines that can help reduce tics. These may be used alongside psychological therapies or after trying these therapies unsuccessfully.
Read more about how tics are treated.
In most cases, tics improve over time or stop completely.
Sometimes they may just last a few months, but often they come and go over several years.
They are normally most severe from around 8 years of age until teenage years, and usually start to improve after puberty.
It's not clear what causes tics. They're thought to be due to changes in the parts of the brain that control movement.
They can run in families, and there's likely to be a genetic cause in many cases. They also often happen alongside other conditions, such as:
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