When it happens · 4 min read
Febrile seizure: what to do, and what it does and doesn't mean
A seizure is one of the most frightening things you can watch happen to your child, and a fever seizure often comes with no warning at all. Here's what it actually looks like, what to do in the moment, and — just as important — what it does not mean about your child.
Last updated August 9, 2026
What it actually looks like
Stiffening, jerking or twitching movements, eyes rolling back, and unresponsiveness are typical, sometimes along with a change in breathing or skin color. Most febrile seizures last well under two minutes, even though it can feel much longer while you're watching it happen.
What to do in the moment
Lay your child on a safe, flat surface, on their side, and clear the area of anything they could hit. Don't try to hold them still and don't put anything in their mouth — they will not swallow their tongue, and putting something in can actually cause injury. Time how long it lasts; that number is the single most useful piece of information you can give a doctor.
When it's 911 versus a same-day call
Call 911 if the seizure lasts longer than 5 minutes, if a second seizure starts before your child has recovered, if breathing trouble continues after it ends, or if your child was injured or was in water when it happened.
Outside of those signs, a febrile seizure that stops on its own still warrants a same-day call to your pediatrician, especially if it's the first one — not because it's usually dangerous, but because it's worth having your child actually examined.
What it does and doesn't mean
Most febrile seizures are what's called "simple" febrile seizures, and they don't cause brain damage, don't cause intellectual disability or learning problems, and don't by themselves mean your child has epilepsy. Only a small share of children who have one go on to develop epilepsy later, and having a febrile seizure isn't something a parent could have prevented or caused.
Common questions
- Does every febrile seizure need an ER visit?
- Not necessarily. A seizure lasting under 5 minutes that resolves on its own typically needs a same-day pediatrician visit rather than an ER trip — but call 911 immediately if it passes the 5-minute mark, repeats without recovery in between, or breathing doesn't return to normal.
- Will this happen every time my child has a fever now?
- Not necessarily — some children have just one febrile seizure and never another, even with future fevers. A pediatrician can talk through your child's specific risk after a first seizure.
- Does this mean my child has epilepsy?
- No — a febrile seizure on its own doesn't indicate epilepsy. Only a small percentage of children who have febrile seizures are later diagnosed with epilepsy, and that's a separate evaluation your pediatrician would guide you through if there were other signs.
If it's this, not that
Still not sure
This page is the general answer. Yours is a specific child.
The advisor can be. It has read everything here, and it knows how old your children actually are — which is the whole difference wherever guidance changes with age. Ask it anything.
- She's got a temperature of 100. Is that something to worry about?
- He's obsessed with space and galaxies — what toys are worth getting him?
Free. It comes with the note.
It answers from the same cited pages you are reading, and when the question is where to go, from the real clinician, hospital and childcare records behind this site — not a link to go search them yourself. It says so when we have not written about something, and it is not a doctor; for anything urgent it gives you the threshold and tells you to call.
Where this comes from
- Febrile Seizures in ChildrenAAP
- Seizure First Aid for ChildrenAAP
- Febrile seizure: Symptoms & causesMayo Clinic
Every claim on this page traces to one of these. See every source we use →
Written from the sources named above, and it is not a substitute for your own doctor. If something feels wrong to you, that instinct is a good enough reason to call — you know yourself and this family better than any page does.

