Skip to content

Epilepsy Health Center

Font Size

Juvenile Myoclonic Epilepsy - Topic Overview

Juvenile myoclonic epilepsy develops between ages 12 and 18. People with the disorder tend to have seizures that cause jerking in the shoulders or arms. Generalized tonic-clonic seizures and absence seizures may be present along with myoclonic seizures. Seizures often occur early in the morning.

People with juvenile myoclonic epilepsy have normal intelligence and do not have other brain or nerve disorders. A family history of myoclonic seizures is present in about half of the people with the disorder. But the exact cause is unknown. Most people require lifelong treatment with medicine.

Recommended Related to Epilepsy

Understanding Epilepsy -- Symptoms

 Seizures are the basic indicator of epilepsy. They vary widely: Staring straight ahead, repetitive swallowing, and lapsing into complete immobility for a few seconds characterize absence (petit mal) seizures, which can recur many times in a day. Tonic/clonic (grand mal) seizures, which usually last several minutes, typically begin with a loss of consciousness and a fall, followed by rigidity, then jerking motions and incontinence of urine. After the seizure ends, there is usually a period...

Read the Understanding Epilepsy -- Symptoms article > >

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: March 12, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
    1
    Next Article:

    Juvenile Myoclonic Epilepsy Topics

    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
    Article
    Questions for Doctor Epilepsy
    Article
     
    Graces Magic Diet
    Article
    Pills spilling from bottle in front of clock
    Article
     
    first aid kit
    Article
    Caring Child Epilepsy
    Article
     
    Making Home Safe
    Article
    epilepsy monitoring
    Article
     

    WebMD Special Sections