Tics Overview

Tics are a special type of muscle spasm or involuntary movement that occurs in recurring patterns. Examples of tics may be things like a twitching eyelid, throat clearing, blinking eyes, protruding tongue, facial grimacing, or other movements. Tics need to be distinguished from other similar movement symptoms, such as twitches, tremor, muscle spasms, convulsions, seizures, and so on. The cause of tics are various tic disorders, such as Tourette Syndrome.

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