Epilepsy is a disorder that causes seizures, and can affect patients of all ages. In order to successfully diagnose and evaluate a patient's seizures, doctors may request an MRI, PET and an EEG test. There are many reasons why epilepsy may develop, including primarily oxygen deprivation at the time of birth, an imbalance of nerve-signaling chemicals (neurotransmitters), head trauma or stroke, and genetic factors. Sometimes, the reason that epilepsy develops is unknown. A broad spectrum of treatment and management options is currently available to help epilepsy patients, including anticonvulsive and other medications, advanced surgical therapies and multiple nerve stimulation and ablation procedures.