Some brain infections. Chemical disturbances of the brain - drugs or poisons or organs that don't work properly. An inherited tendency to seizures. Sleep loss . Idiopathic - no cause found. .
Tumors often cause seizures.
Brain injury . Idiopathic - no cause found. . Injured Brain Seizures can happen when there is damage to the gray matter of the brain. Such damage can be from head injuries, which are the commonest cause of seizures in teen-agers and young patients. Surgery to the brain can be considered another type of injury.