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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- Muscle Spasms: Muscle spasms, including muscle cramps, refer to an abnormal contraction of the muscle. A simple example is muscle cramps, which
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- Involuntary Movements: Involuntary movements are movement symptoms that occur with the personís control. Examples include tics, twitches, muscle spasms, fasciculations, seizures
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- Movement symptoms: Movement symptoms affect the ability to make voluntary, purposeful movements. Related symptoms include coordination symptoms (incoordination), muscle weakness, paralysis, motor
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- Twitches: Twitches are small muscle spasms that may be normal, or may indicate tics or other seizure type disorders. Occasional twitches
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- Tremor: Tremor is the slight involuntary shakiness, usually initially of the fingers or hands. Tremor must be distinguished from various other
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