Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Epilepsy Health Center

Font Size

Epilepsy: Frequently Asked Questions

1. What is epilepsy?

Epilepsy is a chronic (long-lasting) medical condition marked by recurrent epileptic seizures. An epileptic seizure is an event of altered brain function caused by abnormal or excessive electrical discharges from brain cells. Epilepsy is one of the most common neurologic disorders, affecting up to 1% of the U.S. population.

There are different types of seizures, different types of epilepsy syndromes, and different causes of epilepsy. For example, both brain tumors and stroke can cause seizures and lead to chronic epilepsy. Some of the causes can be diagnosed and treated with medications and some require surgery.

Recommended Related to Epilepsy

Understanding Absence Seizure -- Symptoms

Because absence seizures are usually quite brief, tend to strike during times of inactivity, and closely resemble daydreaming or "being off in one's own world," they may pass unnoticed by others and go undiagnosed for some time. Absence seizures fall into two categories: typical and atypical. Typical absence seizures begin abruptly, last 10 to 30 seconds, and resolve themselves without complication. The person simply stops in his tracks (and/or mid-sentence), and enters a staring, trance-like state...

Read the Understanding Absence Seizure -- Symptoms article > >

2. What causes epilepsy?

Approximately 65% of people newly diagnosed with epilepsy have no obvious cause. Of the remaining 35%, the more common reasons include stroke, congenital abnormalities (conditions we are born with), brain tumors, trauma, and infection.

3. Who treats epilepsy?

A neurologist, a doctor who specializes in the brain and nervous system, is best able to diagnose and treat epilepsy. Some neurologists take advanced training and become epileptologists, specialists in the diagnosis and treatment of epilepsy. Many internists and family practice doctors also treat epilepsy.

4. How is epilepsy diagnosed?

To diagnose epilepsy, doctors try to determine the type of seizure you are having and the cause, since various seizure types respond best to specific treatments. The diagnosis is based on your medical history and a complete physical and neurological exam.

Additional testing may often be required, including an electroencephalogram (EEG). The EEG is the only test that can directly detect electrical activity in the brain (seizures are defined by abnormal electrical activity in the brain). During an EEG, electrodes (small metal disks) are attached to specific locations on your head. The electrodes are also attached to a monitor to record the brain's electrical activity.

If you become unconscious during a seizure, others who have often seen you before, during, and after seizures, such as family and close friends, should be present to provide details of your seizures.

5. How is epilepsy treated?

The majority of epileptic seizures are controlled with drug therapy, particularly anticonvulsant medications. The type of treatment prescribed will depend on several factors, including the type of epilepsy, the frequency and severity of the seizures, your age, overall health, and medical history. An accurate diagnosis of the type of epilepsy (not just the type of seizure, since most seizure types occur in different types of epilepsy) is critical to choosing the best treatment.

1 | 2 | 3

Today on WebMD

human head and brain waves
Causes, symptoms, and treatments.
Grand mal seizure
How is each one different?
marijuana plant
CBD, a plant chemical, may cut down seizures.
prescription bottle
Which medication is right for you?
Seizures Driving
Questions for Doctor Epilepsy
Graces Magic Diet
Pills spilling from bottle in front of clock
first aid kit
Caring Child Epilepsy
Making Home Safe
epilepsy monitoring

WebMD Special Sections