Play 01 · Detection

Spot it fast. Then sit it out.

Most concussions don't involve passing out. They show up as a fog, a headache, a feeling that something's off. This page helps you and the people around you recognize the signs quickly, and without second-guessing.

Sit
it
out.
when in doubt
Symptom self-check

7 questions. Two minutes.

Not a diagnosis — a fast guide to whether you should pause, sit out, or get help right now. Answer honestly; toughness isn't the right tool here.

Quick check · about 2 minutes

Symptom self-check

Not a diagnosis. A starting point.
  1. Did you lose consciousness, even briefly?

  2. Have you vomited more than once since the impact?

  3. Is your headache getting worse, not better?

  4. Are you confused about where you are, the score, or what happened?

  5. Do you feel dizzy, off-balance, or nauseous?

  6. Are lights or noise bothering you more than usual?

  7. Are you having trouble remembering plays, names, or the last few minutes?

0 of 7 answered

Adapted from CDC HEADS UP guidance. Educational tool only.

Common symptoms

What to look for

Symptoms can show up right away, or hours later. One sign is enough reason to pause.

Headache

Pressure or pain after impact, even if it seems mild at first.

Dizziness

Feeling off-balance, unsteady, or like the room is moving.

Nausea

Stomach unease or vomiting after a hit, fall, or collision.

Confusion

Trouble following plays, instructions, or what just happened.

Vision changes

Blurred vision, double vision, or light sensitivity.

Memory gaps

Not remembering the hit or the events before or after it.

Slowed reaction

Feeling foggy, delayed, or slower than usual mentally.

Mood changes

Irritable, sad, or anxious in a way that feels unusual.

Red flags · Get help now

Call 911 if you see these.

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Loss of consciousness

Even briefly. Treat this as urgent.

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Seizure or convulsion

Emergency. Keep the athlete safe and call for help.

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Repeated vomiting

More than once after the impact.

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Worsening headache

Pain is getting sharper or more intense, not improving.

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Slurred speech

Difficulty speaking clearly or forming words.

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Weakness or numbness

Especially in one side of the body, arms, or legs.

Up next

Suspect a concussion? Start recovery.

Recovery protocol