Your Questions About Head Injury, Answered
Head Injury: straight answers to the questions people actually ask, with the figures behind them.
Injury to the head, from a minor bump to significant trauma.
Key takeaways
- Anticoagulants: any head injury needs urgent assessment
- Delayed symptoms: can develop hours or days later
- Most useful single change: Have someone stay with the person for the first 24 hours.
- Commonest mistake: Alcohol in the first days after a head injury.
- See a doctor if any of the signs under "When to speak to a doctor" below apply to you.
What is Head Injury?
Injury to the head, from a minor bump to significant trauma.
Why does it matter?
Serious bleeding inside the skull can develop hours after an injury that looked minor at the time.
Delayed symptoms for Head Injury?
Can develop hours or days later.
Return to sport for Head Injury?
Never the same day after a suspected concussion.
What is the single most useful thing to do?
Have someone stay with the person for the first 24 hours.
What is the most common mistake?
Alcohol in the first days after a head injury.
When should I see a doctor?
Call 999 for loss of consciousness, repeated vomiting, worsening headache, a seizure, weakness or numbness, clear fluid from the nose or ears, unequal pupils, or increasing drowsiness or confusion after a head injury. Anyone taking anticoagulants needs urgent assessment after any head injury, however minor it seems.
Where to go next
- Head Injury: What Published Guidance Supports
- Why Head Injury Matters, Explained Simply
- Head Injury — the reference entry
- Recognising an Emergency: Sorting the Evidence From the Noise
- CPR and Defibrillation: What the Evidence Actually Says
When to speak to a doctor
Call 999 for loss of consciousness, repeated vomiting, worsening headache, a seizure, weakness or numbness, clear fluid from the nose or ears, unequal pupils, or increasing drowsiness or confusion after a head injury. Anyone taking anticoagulants needs urgent assessment after any head injury, however minor it seems.
Where this comes from
How this page was put together
Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarised or generalised beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.
Medical disclaimer
This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to a GP, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 999.
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