Epilepsy, Myoclonic Juvenile, also known as juvenile myoclonic epilepsy, is related to myoclonic epilepsy, juvenile 4 and epilepsy, idiopathic generalized, and has symptoms including myoclonus and absence seizures. An important gene associated with Epilepsy, Myoclonic Juvenile is EFHC1 (EF-Hand Domain Containing 1), and among its related pathways/superpathways are Transmission across Chemical Synapses and GABA B receptor activation. Affiliated tissues include brain and eye, and related phenotypes are generalized-onset seizure and eeg with polyspike wave complexes