Epilepsy: Myoclonic Seizures

Epilepsy: Myoclonic Seizures

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:

  • 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

Current as of: November 19, 2019

Author: Healthwise Staff

Medical Review: John Pope MD - Pediatrics

Adam Husney MD - Family Medicine

Martin J. Gabica MD - Family Medicine

Kathleen Romito MD - Family Medicine

Steven C. Schachter MD - Neurology