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.
Author: Healthwise Staff Medical Review: John Pope, MD, MPH - Pediatrics Brian O'Brien, MD, FRCPC - Internal Medicine Adam Husney, MD - Family Medicine Martin J. Gabica, MD - Family Medicine Kathleen Romito, MD - Family Medicine Steven C. Schachter, MD - Neurology
Medical Review:John Pope, MD, MPH - Pediatrics & Brian O'Brien, MD, FRCPC - Internal Medicine & Adam Husney, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine & Kathleen Romito, MD - Family Medicine & Steven C. Schachter, MD - Neurology