A seizure is abnormal electrical activity in the brain. It may be mild or severe and cause problems, such as jerking motions of the limbs or body. It can be a symptom or a side effect of a more serious health problem.
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Sometimes the cause is not known. Some common causes are:
Things that may raise a child's risk of seizure are:
Problems may be:
You will be asked about your child‘s symptoms and health history. A physical exam will be done.
Blood tests may be taken. The fluid around your child's spine may also be tested. This can be done with a lumbar puncture.
Images may be taken of the child's brain. This can be done with:
The child's brain activity may be tested. This can be done with an EEG.
Some seizures will not need to be treated. For example, children will outgrow seizures caused by fever by about 5 years of age. Others will be treated based on what is causing them. Underlying problems causing seizures will need to be treated.
Anti-seizure medicine may be given. The one that is used will depend on the type of seizure the child has.
Surgery may be needed in children with severe seizures who are not helped by medicine. Nerve fibers may be separated or a section of the brain that starts the seizure may be removed. It is only an option for children who have specific parts of the brain involved. It is not done often.
There are no known ways to prevent seizures.
Family Doctor—American Academy of Family Physicians
Healthy Children—American Academy of Pediatrics
Febrile seizure. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/febrile-seizure . Updated November 30, 2018. Accessed January 3, 2020.
Hogan T. Seizure disorders in childhood. Loyola University Medical Education Network website. Available at:
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Accessed January 3, 2020.
Kimia AA, Bachur RG, et al. Febrile seizures: emergency medicine perspective. Curr Opin Pediatr. 2015 Jun;27(3):292-297.
Neonatal seizures. Intensive Care Nursery Staff House Manual. UCSF Children's Hospital website. Available at: https://www.ucsfbenioffchildrens.org/pdf/manuals/48_Seizures.pdf. Published 2004. Accessed January 3, 2020.
Seizure in children. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/seizure-in-children . Updated August 8, 2018. Accessed January 3, 2020.
Last reviewed September 2019 by
EBSCO Medical Review Board
Kari Kassir, MD
Last Updated: 1/3/2020