Cradle & Care

When it happens · 5 min read

They hit their head — what actually matters

The sound alone is awful — a hard crack against a coffee table, a fall off the couch, a header into the hardwood — and then thirty seconds of screaming that feels like it's telling you something terrible.

Most of the time it isn't. Falls are the single most common reason young children end up in an ER, and the overwhelming majority go home the same day with nothing more than a lump and a bruised ego. Here's how to actually tell the difference.

Last updated August 8, 2026

What a genuinely minor bump looks like

Crying that starts right away and settles within about ten minutes. A child who is alert, responds normally to you, and gets back to being themselves — annoyed, curious, hungry — shortly after. A goose-egg lump is common and, on its own, not a bad sign; a cold compress for 20 minutes helps the swelling.

This describes the large majority of bumps. Kids fall constantly at this age, and the skull is doing exactly what it's built to do.

Under 1, the rule is different

A baby can't tell you they have a headache or that the room looks blurry, so the threshold for calling is lower, and the signs to watch are behavioral rather than verbal: unusual irritability that doesn't settle, refusing to nurse or eat, sleeping much more or much less than normal, and being unusually hard to console.

Watch the soft spot. A fontanelle that bulges while your baby is calm, upright, and not crying is not normal and is worth a call — though it's common for it to look slightly fuller when a baby is crying or lying flat, which isn't the same thing.

For any fall that was more than a light bump — off a bed, changing table, or down stairs — call your pediatrician for guidance rather than deciding alone, even if your baby seems fine. This is the one age band where 'they seem okay' is worth double-checking rather than fully trusting.

The signs that mean more than a bump

A brief period of confusion or memory loss around the fall counts as a possible concussion even without ever losing consciousness — most concussions don't involve blacking out. In a toddler or older child, watch for: a headache that keeps getting worse, slurred speech or confusion, dizziness that doesn't pass, extreme irritability or behavior that isn't like them, vomiting more than two or three times, stumbling or trouble walking, fluid or blood from the nose or ears, unusual sleepiness or difficulty waking, one pupil looking larger than the other, or double vision.

In babies and children too young to describe symptoms, the signs look more ordinary and are easy to miss for exactly that reason: more crying than usual, wanting to be held more, refusing to eat, sleeping more or less than normal, not wanting to play, or seeming unusually clumsy or unsteady.

Call 911 or go straight to the ER for: a seizure, being unable to recognize familiar people, repeated vomiting, loss of consciousness, increasing confusion or restlessness, trouble waking up or staying awake, slurred speech or weakness on one side, a headache that keeps getting worse, or pupils that look different sizes from each other. For a baby specifically, add: crying that cannot be consoled at all, or refusing to nurse or eat entirely.

Signs can take hours — sometimes a day or two — to show up. That's the reason behind the observation window below, not an excuse to skip it.

Can they go to sleep?

Yes. This is the single most common myth about head bumps, and it isn't true: it is okay for your child to sleep after a head injury. What actually matters is being able to check on them.

For the first 24 hours, stay somewhere you'll notice if something changes, and check on them every 2 to 3 hours — you should be able to wake them normally, see that they can move the way they usually do, and that they seem like themselves for a minute before they drift back off. If you can't wake them, or they seem wrong when you do, that's the emergency, not the sleeping itself.

Common questions

Do we need to go to the ER for every head bump?
No. A child who cries briefly, settles within about ten minutes, and acts like themselves afterward almost never needs imaging or a same-day visit. Call your pediatrician if you're unsure — they can help you decide over the phone.
Is it true you shouldn't let them sleep?
No — this is a myth. It's fine for your child to sleep after a head bump. The real guidance is to check on them every 2-3 hours for the first 24 hours, making sure you can wake them normally and that they seem like themselves.
What's different about babies under a year?
They can't describe symptoms, so the signs are behavioral instead: irritability that won't settle, refusing to nurse, unusual sleepiness, or a soft spot that bulges while calm. The threshold for calling is lower, and any fall that was more than a light bump is worth a call even if your baby looks fine.
Does a concussion always involve losing consciousness?
No — most concussions don't. Brief confusion, memory loss around the event, or simply seeming dazed and clumsy afterward all count, whether or not there was ever a loss of consciousness.

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?
Get the weekly note — and the advisor

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

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.