Recurrent:
Congenital: developmental malformation of brain
Genetic: inherited syndromes, family history
Trauma: brain damage or tumors
CNS infections: toxins and infectious agens like meningitis, encephalitis abscess of the brain
Metablolic/Toxic: hypoglycemia, electrolyte imbalance, hypoxia, withdrawl from-long term use of alcohol or addicitive drugs
Cerebrovascular and digenrative: hemorrhage, infarctions, vessel malfromatins, Alzheimer's