Symptoms
Common signs and symptoms of Febrile Seizures in Children 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 in Children.
Febrile seizures happen when a child's developing brain reacts to rapid temperature changes during a fever.
Febrile seizures happen when a child's developing brain reacts to rapid temperature changes during a fever. The exact mechanism isn't fully understood, but researchers believe young children's brains are more sensitive to temperature fluctuations than adult brains. The seizure typically occurs as the fever is rising quickly, not necessarily when it reaches its peak.
Any illness that causes fever can trigger a febrile seizure.
Any illness that causes fever can trigger a febrile seizure. Common culprits include ear infections, respiratory viruses, stomach bugs, and childhood diseases like roseola. Even vaccinations can occasionally cause the fever that leads to a seizure, though this is rare. The specific bug causing the illness matters less than how quickly the child's temperature climbs.
Genetics play a significant role too.
Genetics play a significant role too. Children with family members who had febrile seizures are much more likely to experience them. Scientists have identified several genes that seem to make some children more susceptible to seizures during fevers, though having these genes doesn't guarantee a child will have one.
Risk Factors
- Family history of febrile seizures
- Age between 6 months and 5 years
- Previous febrile seizure
- Delayed development or neurological conditions
- Attendance at daycare with frequent illness exposure
- Iron deficiency anemia
- Rapid fever onset regardless of final temperature
- Certain genetic variations affecting brain development
Diagnosis
How healthcare professionals diagnose Febrile Seizures in Children:
- 1
Most febrile seizures are diagnosed based on witnessing the event and the child's medical history.
Most febrile seizures are diagnosed based on witnessing the event and the child's medical history. When you arrive at the emergency room or doctor's office, the medical team will want detailed information: How long did the seizure last? What did it look like? What was the child's temperature? Had they been sick recently? Try to time the seizure if possible, even though it feels endless in the moment.
- 2
Doctors will perform a thorough physical exam and check the child's temperature, blood pressure, and neurological responses.
Doctors will perform a thorough physical exam and check the child's temperature, blood pressure, and neurological responses. For a first simple febrile seizure in a child who appears well afterward, extensive testing usually isn't needed. However, if the child seems unusually sick, has signs of infection, or the seizure was complex, additional tests might include blood work to check for serious infections or electrolyte imbalances.
- 3
A spinal tap (lumbar puncture) is rarely needed but might be considered in very young infants (under 12 months) or if doctors suspect meningitis.
A spinal tap (lumbar puncture) is rarely needed but might be considered in very young infants (under 12 months) or if doctors suspect meningitis. Brain scans like CT or MRI are typically not necessary after a simple febrile seizure, since these seizures don't cause brain damage. The key is distinguishing febrile seizures from other serious conditions that can cause seizures in children.
Complications
- The vast majority of children who experience febrile seizures have no lasting complications whatsoever.
- Simple febrile seizures don't cause brain damage, learning disabilities, cerebral palsy, or any other neurological problems.
- Your child's intelligence and development will proceed normally, regardless of how frightening the seizure appeared.
- The main risk is having another febrile seizure during a future illness.
- About 30-35% of children will have a second febrile seizure, usually within two years of the first one.
- Children who have their first seizure before age 12 months or have a family history of febrile seizures face slightly higher odds of recurrence.
- Complex febrile seizures carry a small increased risk (about 2-5%) of developing epilepsy later in childhood, though this risk remains quite low overall.
Prevention
- Unfortunately, there's no foolproof way to prevent febrile seizures, since you can't always prevent childhood illnesses or control how quickly a fever develops.
- However, aggressive fever management during illness can help reduce the risk.
- Start fever-reducing medications at the first sign of illness, especially if your child has had febrile seizures before.
- Keep acetaminophen and ibuprofen in your medicine cabinet and know the correct doses for your child's weight.
- Some pediatricians recommend alternating these medications during high fevers, though always follow your doctor's specific instructions.
- Quick cooling measures like lukewarm baths, light clothing, and increased fluid intake can also help manage rising temperatures.
- Staying up-to-date with vaccinations actually helps prevent febrile seizures by reducing the risk of serious infections that cause high fevers.
- While vaccines themselves can occasionally cause fever, the risk of seizures from vaccine-related fever is much lower than the risk from the diseases vaccines prevent.
- Good hygiene practices, adequate sleep, and proper nutrition also support your child's immune system in fighting off infections before they become severe.
During a febrile seizure, your main job is keeping your child safe while the seizure runs its course.
During a febrile seizure, your main job is keeping your child safe while the seizure runs its course. Place them on their side on a soft surface, away from hard objects. Don't put anything in their mouth or try to hold them down. Time the seizure if you can, and call 911 if it lasts longer than 5 minutes or if your child has trouble breathing.
After the seizure ends, focus on treating the underlying fever and illness.
After the seizure ends, focus on treating the underlying fever and illness. Give age-appropriate doses of acetaminophen or ibuprofen as directed by your pediatrician. Dress your child in light clothing, offer plenty of fluids, and monitor them closely. Most children return to their normal selves within an hour or two, though some remain drowsy for the rest of the day.
Daily seizure medications are rarely prescribed for simple febrile seizures, since the risks of long-term medication often outweigh the benefits.
Daily seizure medications are rarely prescribed for simple febrile seizures, since the risks of long-term medication often outweigh the benefits. However, children with complex febrile seizures or other risk factors might need preventive treatment. Some doctors prescribe rescue medications like rectal diazepam for families to use if a seizure lasts too long.
The focus should be on having an action plan for future fevers.
The focus should be on having an action plan for future fevers. Your pediatrician will discuss when to give fever reducers, warning signs to watch for, and when to seek immediate medical care. While fever-reducing medications can make your child more comfortable, they don't reliably prevent future febrile seizures.
Living With Febrile Seizures in Children
Life with a child who has had febrile seizures requires some preparation but shouldn't be ruled by fear. Create an emergency action plan with your pediatrician that includes when to give medications, how to respond during a seizure, and when to call for help. Keep a thermometer handy and check temperatures frequently during any illness. Some parents find it helpful to keep a seizure diary noting triggers, duration, and recovery time.
Latest Medical Developments
Latest medical developments are being researched.
Frequently Asked Questions
Update History
Mar 6, 2026v1.0.0
- Published by DiseaseDirectory