Epilepsy: Myoclonic Seizures

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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:

  • 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.

Related Information

Credits

ByHealthwise Staff

Primary Medical Reviewer John Pope, MD - Pediatrics

Specialist Medical Reviewer Steven C. Schachter, MD - Neurology

Current as ofFebruary 20, 2015

Current as of: February 20, 2015