Genetic Epilepsy with Febrile Seizures Plus: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Genetic Epilepsy with Febrile Seizures Plus?
A neurologist usually manages this condition. A child's regular doctor often makes the first referral. Some families choose a direct primary care doctor, who charges a flat monthly fee instead of billing insurance. These doctors can handle fever illnesses and coordinate care, referring the family to a neurologist when needed.
What it is
Genetic epilepsy with febrile seizures plus is a seizure disorder that runs in families. People with this condition have seizures during fevers in early childhood. Some go on to have other seizure types later, which is what the word "plus" refers to.
Symptoms
The main symptom is a seizure that happens when a child has a fever. These seizures usually start between six months and five years of age. Most children stop having fever-related seizures by age six, though some develop other seizure types later, such as seizures without fever or staring spells.
Causes and who gets it
This condition is caused by changes in genes, many of which affect how brain cells control electrical signals. In many families, the changed gene is passed from a parent to a child; in other cases, it appears for the first time in a child. The condition is uncommon and affects boys and girls.
How doctors diagnose it
Doctors start by asking about the child's health history and whether any relatives have had seizures. A test called an EEG records the brain's electrical activity. Genetic testing can confirm the condition using a blood or saliva sample. Doctors also check that the fever was not caused by a serious infection such as meningitis.
Treatment
Many children with only fever-related seizures do not need daily medicine. When seizures happen without fever or happen often, antiseizure drugs may help. Many children outgrow the condition, but some continue to have seizures into adulthood.
When to see a doctor
Any seizure in a child deserves medical attention. Call for emergency help if a seizure lasts longer than five minutes or if a second seizure follows the first. A doctor should also be seen if seizures happen without fever.
Common questions
Will my child outgrow this condition?
Many children stop having fever-related seizures by age six, and some never have another seizure. Others develop different seizure types later. A neurologist can follow the child over time and adjust the plan as needed.
Can this condition be passed to future children?
It can run in families, so a parent with the gene change may pass it on. Not every child who inherits the gene change will have seizures. Genetic counseling can help families understand the chances.
What should I do if my child has a seizure during a fever?
Lay the child on their side on a safe, flat surface away from hard objects. Do not put anything in the mouth or hold the child down. Time the seizure and get medical help, especially if it lasts more than five minutes.
Is this condition dangerous?
Most fever-related seizures end on their own and do not cause lasting harm. The outlook varies, and some people need long-term treatment. A doctor can explain what to expect for a specific situation.
Sources
- MedlinePlus Genetics - Genetic epilepsy with febrile seizures plus
- NIH Genetic and Rare Diseases Information Center - Generalized epilepsy with febrile seizures plus
- Epilepsy Foundation - Epilepsy syndromes
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
