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    Epilepsy: Myoclonic Seizures - Topic Overview

    Myoclonic seizures affect a small number of children and adults with generalized epilepsy of unknown cause (idiopathic). In children and teens with juvenile myoclonic epilepsy, the seizures seem to occur most often after waking up or while falling asleep.

    During a myoclonic seizure:

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    • The arms, legs, torso, or facial muscles jerk rapidly as though they are being shocked.
    • The body may jerk once or many times, on one or both sides of the body, in a rhythmic or random pattern.
    • The person usually does not lose consciousness.

    Myoclonic seizures are almost always very brief.

    WebMD Medical Reference from Healthwise

    Last Updated: February 20, 2015
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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