Symptoms
Common signs and symptoms of Febrile Seizures (Pediatric) include:
When to see a doctor
If you experience severe or worsening symptoms, seek immediate medical attention. Always consult with a healthcare professional for proper diagnosis and treatment.
Causes & Risk Factors
Several factors can contribute to Febrile Seizures (Pediatric).
Febrile seizures happen when a child's brain becomes overstimulated by rising body temperature during an illness.
Febrile seizures happen when a child's brain becomes overstimulated by rising body temperature during an illness. Think of the developing brain like a car engine that's still being fine-tuned - it's more likely to overheat and malfunction when stressed. The rapid rise in temperature, rather than how high the fever gets, typically triggers these seizures. A child might have a febrile seizure with a temperature of 101°F if it rises quickly, while another child might tolerate a higher fever without problems.
The underlying illnesses causing the fever are usually common childhood infections.
The underlying illnesses causing the fever are usually common childhood infections. Viral infections like those causing colds, flu, or roseola account for most cases. Bacterial infections such as ear infections, urinary tract infections, or pneumonia can also trigger febrile seizures. Even the body's immune response to recent vaccinations occasionally causes the fever that leads to a seizure, though this is relatively uncommon.
Genetics play a significant role in determining which children will experience febrile seizures.
Genetics play a significant role in determining which children will experience febrile seizures. If one parent had febrile seizures as a child, their child has about a 10% chance of having them too. When both parents had childhood febrile seizures, the risk jumps to around 30%. Scientists have identified several genes that make children more susceptible, but having these genes doesn't guarantee a child will have seizures - it just makes them more likely when the right conditions align.
Risk Factors
- Age between 6 months and 5 years
- Family history of febrile seizures
- Previous febrile seizure episode
- Attending daycare or preschool
- Rapid rise in body temperature
- Viral infections like roseola or influenza
- Recent immunizations within 24-48 hours
- Iron deficiency or low iron levels
- Developmental delays or neurological conditions
- First-time fever in very young children
Diagnosis
How healthcare professionals diagnose Febrile Seizures (Pediatric):
- 1
When you bring your child to the emergency room or doctor's office after a febrile seizure, the medical team will focus on two main goals: confirming the seizure was truly febrile and identifying what's causing the fever.
When you bring your child to the emergency room or doctor's office after a febrile seizure, the medical team will focus on two main goals: confirming the seizure was truly febrile and identifying what's causing the fever. The doctor will want a detailed description of exactly what happened - how long the seizure lasted, which parts of the body were affected, and what your child was like immediately before and after. They'll also check your child's temperature and look for obvious sources of infection like ear infections or throat inflammation.
- 2
For simple febrile seizures in children over 18 months, doctors usually don't need extensive testing beyond a physical exam and basic evaluation for the fever's cause.
For simple febrile seizures in children over 18 months, doctors usually don't need extensive testing beyond a physical exam and basic evaluation for the fever's cause. However, younger children or those with complex seizures may need additional tests. These might include blood tests to check for infections or electrolyte imbalances, urine tests to rule out kidney infections, or in rare cases, a lumbar puncture if there's concern about meningitis. The doctor will also want to know about any family history of seizures or neurological conditions.
- 3
Doctors distinguish febrile seizures from other types of seizures by ruling out conditions like epilepsy, brain infections, or metabolic disorders.
Doctors distinguish febrile seizures from other types of seizures by ruling out conditions like epilepsy, brain infections, or metabolic disorders. If a child has recurrent seizures without fever, seizures that last longer than 15 minutes, or seizures that affect only one side of the body, additional testing such as an EEG (brain wave test) or brain imaging might be necessary. Most children with straightforward febrile seizures don't need these more intensive tests and can go home the same day once the underlying illness is being treated.
Complications
- The vast majority of simple febrile seizures cause no lasting harm to children.
- They don't damage the brain, affect intelligence, or cause learning disabilities.
- Studies following children for years after febrile seizures show they perform just as well academically and developmentally as children who never had seizures.
- However, children who have had one febrile seizure do have about a 30% chance of having another one during a future illness, with the risk being highest in the first two years after the initial seizure.
- Complex febrile seizures carry slightly higher risks, though serious complications remain uncommon.
- About 2-5% of children with complex febrile seizures may develop epilepsy later in childhood, compared to less than 1% of children with simple febrile seizures.
- Status epilepticus, where a seizure lasts longer than 30 minutes, occurs in less than 5% of febrile seizures but requires immediate emergency treatment to prevent potential brain damage.
- Very rarely, febrile seizures can be the first sign of a more serious underlying condition like meningitis or encephalitis, which is why medical evaluation after the first seizure is so important.
Prevention
- While you can't completely prevent febrile seizures, you can reduce the likelihood by managing your child's fevers promptly and effectively.
- When your child develops a fever, give fever-reducing medications like acetaminophen or ibuprofen at the first signs of illness, following dosing instructions carefully.
- Keep your child well-hydrated with water, breast milk, or clear fluids, and dress them in lightweight clothing to help their body cool down naturally.
- Staying up-to-date with vaccinations actually helps prevent febrile seizures by reducing your child's risk of getting serious infections that cause high fevers.
- While vaccines occasionally cause mild fevers that could trigger seizures, the infections they prevent are far more likely to cause the prolonged high fevers associated with seizures.
- Good hygiene practices like frequent handwashing, avoiding sick contacts when possible, and keeping your child home when they're ill can also reduce exposure to fever-causing infections.
- Some parents wonder about giving fever reducers preventively during illnesses, but doctors generally don't recommend this approach.
- Instead, monitor your child closely during any illness and treat fevers as they develop.
- If your child has had febrile seizures before, work with your pediatrician to develop a specific plan for managing future fevers, including when to give medications and when to seek immediate medical care.
The immediate treatment for a febrile seizure focuses on keeping your child safe during the episode and addressing the underlying fever.
The immediate treatment for a febrile seizure focuses on keeping your child safe during the episode and addressing the underlying fever. During the seizure itself, place your child on their side on a soft surface, remove any nearby objects they could hit, and never put anything in their mouth. Don't try to hold them down or stop the shaking - just keep them safe and time how long it lasts. Most febrile seizures stop on their own within a few minutes, but call 911 if the seizure lasts longer than 5 minutes or if your child has trouble breathing.
Once the seizure ends, treating the fever becomes the priority.
Once the seizure ends, treating the fever becomes the priority. Give age-appropriate doses of acetaminophen or ibuprofen to help reduce your child's temperature, offer plenty of fluids, and use lukewarm baths or cool washcloths if needed. However, don't use ice baths or alcohol rubs, as these can cause dangerous drops in body temperature. If the fever is from a bacterial infection like strep throat or an ear infection, antibiotics will be necessary to treat the underlying cause.
Most children with simple febrile seizures don't need ongoing seizure medications.
Most children with simple febrile seizures don't need ongoing seizure medications. These drugs have side effects that often outweigh their benefits for febrile seizures, since most children outgrow them naturally. However, doctors might consider preventive medications for children who have very frequent complex febrile seizures or other risk factors. Some families keep rescue medications like rectal diazepam at home for children prone to prolonged seizures, though this is only used in specific situations.
New research is exploring whether certain supplements like zinc or iron might help prevent febrile seizures in children with deficiencies, but more studies are needed before these become standard recommendations.
New research is exploring whether certain supplements like zinc or iron might help prevent febrile seizures in children with deficiencies, but more studies are needed before these become standard recommendations. The focus remains on treating fevers promptly and teaching families how to respond safely if another seizure occurs. Most children who have one febrile seizure never have another, and even those who do typically stop having them by school age.
Living With Febrile Seizures (Pediatric)
After your child has had a febrile seizure, life can feel different as a parent. Many families find themselves watching every sniffle and temperature spike with heightened anxiety. This vigilance is natural, but try not to let fear of future seizures prevent your child from living normally. Most children who have febrile seizures are completely normal between episodes and should participate in all regular childhood activities including sports, playdates, and school.
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Update History
Mar 6, 2026v1.0.0
- Published by DiseaseDirectory