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What do I do if someone hit their head?

Most head bumps are minor, but watch closely for danger signs over the next day. Call 911 if they pass out, vomit repeatedly, or get confused.

Depends on severity

Do this now

  1. Don’t move them if you think the neck or back is hurt. Call 911.
  2. Check for danger signs (see the red box) and call 911 if you see any.
  3. Stop any bleeding with gentle pressure from a clean cloth.
  4. Hold a cold pack wrapped in a cloth on any bump for up to 20 minutes.
  5. Stay with them and watch them closely for the next 24 hours.
Call 911 if:
  • They were knocked out, even briefly, or can’t be woken up
  • They have a seizure, vomit more than once, or have a headache that gets worse
  • They are confused, very sleepy, agitated, or acting strangely, or their speech is slurred
  • One pupil is larger than the other, or they have weakness, numbness, or trouble walking
  • Clear fluid or blood is coming from the nose or ears
  • A baby or young child won’t stop crying or won’t eat or nurse

See a doctor or urgent care if

  • They have signs of a concussion: headache, dizziness, nausea, feeling foggy, trouble remembering, or being bothered by light or noise
  • They take a blood thinner or are an older adult — get checked right away, even if they seem OK (an emergency room is often best)
  • Symptoms last more than a few days or get worse

Sports and play

Anyone who might have a concussion should stop playing for the rest of the day and not return to sports until a health care provider says it’s OK.

See the full head injuries guide.

Sources

Last reviewed October 14, 2026. General information only, not medical advice. Read the disclaimer.