An accurate diagnosis of seizures and epilepsy is required for efficient therapy. Diagnostic studies can assist establish whether and where a brain injury is producing seizures. The doctor will begin by taking a history, which includes questions about the person's or parent's overall health as well as the seizures and their pattern of recurrence. The doctor may also ask how long ago the injury occurred. A physical examination is done to look for signs of other problems that could be causing or contributing to the seizure activity. Tests may include: Blood tests may be used to determine if the person has any underlying medical conditions or medications that might cause or contribute to the seizure activity. Brain scans such as magnetic resonance imaging (MRI) or computerized tomography (CT) scan are used to identify any injuries to the brain not apparent in the first assessment. Scans may show damage to the brain tissue itself or abnormalities such as tumors or blood vessels that may need to be treated along with the seizure disorder. Electroencephalograms (EEGs) monitor the brain's electrical activity over time, showing changes associated with seizures. Other tests may be done to confirm the diagnosis including genetic testing and video-electroencephalography (VEEG). Treatment depends on what type of seizure is happening and what caused it. If a person has recurrent seizures, then they are likely to have another seizure if the cause is not removed.