Concussion assessment and management
A checking-over and management plan after a knock to the head, to spot dangerous injuries, confirm concussion, and bring you safely back to school, work and sport.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- Concussion is diagnosed from how someone looks and feels, not from a scan — normal scans do not rule it out.
- If in doubt, sit them out: anyone with a suspected concussion is removed from play and does not return to sport that day.
- Some symptoms are emergencies. Worsening headache, repeated vomiting, drowsiness, a seizure, weakness, double vision, unequal pupils or severe neck pain mean call 999.
- Return to school or work comes before return to sport, and is staged over weeks; under-18s are managed more cautiously than adults.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your specialist will give you advice for your situation.
Spots dangerous injuries — bleeding inside the skull, a skull fracture or a neck injury — that need urgent treatment.
Anyone with red-flag signs needs emergency (A&E/999) care, not a routine clinic appointment.
Relative rest. You can do gentle daily activities and short walks, but avoid intense exercise, demanding work or study, alcohol and driving. Do not be...
Clear written instructions on red flags and exactly when to call 999.
Relative rest. You can do gentle daily activities and short walks, but avoid intense exercise, demanding work or...
Gradually add light activity and short periods of screen time, study or work as long as symptoms do not worsen...
Build up to full study or work and light, non-contact exercise as symptoms allow. Return to education or work...
Only once you have been free of symptoms at rest can you progress through contact training. UK grassroots guidance...

What is concussion assessment and management?
Concussion is a brain injury caused by a bump, blow or jolt to the head or body that makes the brain move suddenly inside the skull. It affects how the brain works for a while. You do not have to be knocked out to have a concussion, and most people have a completely normal CT or MRI scan.
Assessment means a clinician (or a trained person at the side of the pitch) checks for danger signs, decides whether a concussion is likely, and makes sure nothing more serious — like bleeding inside the skull or a neck injury — has been missed. Management is the plan that follows: a short rest, then a careful, step-by-step return to daily life, study or work, and finally sport.
The single most important rule in UK grassroots-sport guidance is "if in doubt, sit them out". Anyone with a suspected concussion must be removed from play straight away and must not return to sport on the same day. Going back too soon, before the brain has recovered, risks a second injury that can very rarely be catastrophic (this is one reason the rules are strict).
This guide explains what assessment can and cannot do, the warning signs that mean you need emergency help, and how a safe return is staged. It is general information, not a substitute for being assessed by a clinician.
Types, options & approaches
There may be different ways to do this. The right approach depends on the clinical question and your circumstances.
Options at a glance
These are the main approaches described in this guide. The right option depends on the diagnosis, your goals and what your clinician thinks is safe.
Pitch-side (immediate) recognition
A quick check at the time of injury by a coach, first-aider or healthcare professional, looking for danger signs and obvious concussion. The aim is simply to remove the...
Structured clinical assessment
A more thorough check by a clinician within 24–72 hours, reviewing symptoms, memory, balance, eye movements and concentration, and ruling out a neck injury. Tools such as the...
Emergency (A&E) assessment
Used when red-flag signs are present. The hospital decides whether a CT scan of the head is needed to look for bleeding or a fracture. A scan checks for serious injury; it...
Graduated return-to-activity programme
A step-by-step plan that increases mental and physical effort only as long as symptoms do not return, covering return to study or work first, then non-contact training, then...
Preparing for your test
- If you are arranging an assessment after a head knock, write down exactly what happened, whether there was any loss of consciousness, and when symptoms started.
- List all symptoms since the injury — headache, dizziness, feeling foggy, nausea, light or noise sensitivity, sleep and mood changes — and how they are changing.
- Bring details of any previous concussions, how long each took to settle, and any history of migraine, anxiety, depression or learning difficulties, as these affect recovery.
- Bring a list of your medicines, especially any blood-thinners, as these change how a head injury is managed.
- Where possible, bring someone who saw the injury, as the account of a witness is valuable.
- Do not drink alcohol, do not drive, and do not be left alone for the first 24 hours after a significant head knock until a clinician has advised it is safe.
What happens
At the side of the pitch, a trained person checks whether you can be moved safely and looks for danger signs. If a concussion is suspected, you are taken out of play for the rest of the day — this is not optional, and "if in doubt, sit them out" applies even if you feel able to continue.
A clinical assessment reviews how the injury happened and your symptoms, then checks memory, concentration, balance, coordination and eye movements, and examines your neck. The clinician decides whether the picture fits concussion, whether anything more serious needs excluding, and whether you need to go to A&E.
Scans are not used to diagnose concussion. A CT head scan is arranged only when there is concern about bleeding, a skull fracture or another serious injury — for example after loss of consciousness, repeated vomiting, a seizure, or in someone on blood-thinners. A normal scan is reassuring about those dangers but does not mean there is no concussion.
You are then given a clear plan: what to watch for, when to rest, how to start moving again, and when and how to return to study, work and sport.
Is this test right for me?
A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.
May not be suitable if…
- Anyone with red-flag signs needs emergency (A&E/999) care, not a routine clinic appointment.
- A clinic assessment is not the place to manage a possible neck (spinal) injury, which needs immobilisation and emergency assessment.
- Private follow-up is not a substitute for urgent care in the first hours after a significant head injury.
- Scanning is not a way to 'rule in' or 'rule out' concussion and should not be requested for that reason.
Delay or rearrange if…
- Symptoms are worsening rather than settling — seek urgent assessment instead of waiting for a planned appointment.
- There is any concern about a neck injury until that has been safely excluded.
- The person is intoxicated, making assessment unreliable, until they are sober and can be properly checked.
- A further head injury has occurred before recovery from the first.
Alternatives to discuss
- NHS urgent care: call 999 for red flags. For advice within 24 hours of a head injury, use NHS 111 in England, Scotland or Wales, or your GP out-of-hours or Trust Phone First service in Northern Ireland.
- Assessment by a trained healthcare professional already covering the sport or event.
- Watchful waiting at home with a responsible adult, clear red-flag advice and a graded return, for milder injuries.
- Referral to a specialist concussion or rehabilitation service if symptoms persist.
Before you decide
Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
Benefits
- Spots dangerous injuries — bleeding inside the skull, a skull fracture or a neck injury — that need urgent treatment.
- Gives a clear, individual plan for rest and a safe, staged return rather than guesswork.
- Reduces the risk of returning to sport too early, before the brain has recovered.
- Helps return to school or work sensibly, so symptoms are not made worse.
- Picks up when symptoms are lasting longer than expected and need extra help.
Risks & complications
- Symptoms (headache, fogginess, tiredness, dizziness) can feel worse before they get better in the first day or two.
- Time off school, work and sport, which can be frustrating.
- Uncertainty — concussion is a clinical judgement, so there is rarely a single test that gives a clear yes or no.
- Frustration with the staged return, which can feel slow.
- Symptoms that last beyond four weeks (longer in some children and teenagers).
- Low mood, anxiety or irritability while recovering.
- Returning too early and having symptoms flare, setting recovery back.
- A CT scan, if needed, carries a small radiation dose and may pick up unrelated findings.
- A serious brain injury (such as bleeding) that was not obvious at first — this is why red-flag advice matters.
- Second-impact concern: a further head injury before recovery, which very rarely causes rapid, dangerous brain swelling.
- A missed neck (spinal) injury if the neck is not assessed.
The biggest dangers are missing a serious head or neck injury early on, and returning to contact sport before the brain has recovered. The safest approach is to assume concussion when in doubt, remove the person from play, watch for red flags, and follow a staged return. Ask your clinician what specific signs should make you seek emergency help, and who to contact if symptoms are not settling.
Published figures to discuss
Concussion recovery varies widely between individuals, so the platform avoids quoting precise percentages. The diagnosis is clinical, not based on a scan, and there is no single test with a fixed accuracy. The figures that are reliable in UK guidance are about timing of return, not about the chance of any particular outcome.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Return to competition too soon | UK grassroots guidance: no return before 21 days | Return should follow graduated return to education/work and sport, with symptoms settled. | Guide sourcesClinical context |
| Symptoms persisting beyond 28 days | Needs healthcare review | UK guidance advises professional support if symptoms persist, because vestibular, migraine, mood, sleep or neck issues may need treatment. | Guide sourcesClinical context |
| Brain bleed or serious head injury missed | Uncommon but urgent if red flags | Worsening headache, repeated vomiting, seizure, confusion, weakness, drowsiness or anticoagulant use changes urgency. | GOV.UK — Concussion guidance for grassroots sportgov.ukSource-linked context |
| Second head injury before recovery | Avoidable safety risk | Continuing play after suspected concussion increases risk of slower recovery and further injury. | GOV.UK — Concussion guidance for grassroots sportgov.ukSource-linked context |
These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.
What happens afterwards
Most people recover from concussion within a couple of weeks, and most children and teenagers within about four weeks, but everyone is different. Recovery is about pacing — doing enough to keep moving forward without setting off symptoms.
- Headache, tiredness and feeling 'foggy' or slowed down for the first days to weeks.
- Dizziness, sensitivity to light or noise, and trouble concentrating that ease gradually.
- Sleep changes — sleeping more than usual or finding it harder to sleep.
- Feeling more emotional, irritable or low than usual while recovering.
- Symptoms that briefly return when you do too much, settling again with rest.
Aftercare
- For the first 24 hours after a significant head knock, stay with someone who can get help if you deteriorate, and do not drink alcohol or drive.
- Rest for 24–48 hours, then build activity back gradually, staying just below the level that brings symptoms on.
- Tell your school, college, workplace and any other sports clubs about the concussion so they can support a graded return.
- Do not return to any sport with a risk of contact until you have completed the staged programme and been advised it is safe.
- Use simple pain relief such as paracetamol for headache only if advised; avoid sedatives and excess alcohol while recovering.
- Build screen time, reading and exercise back in steps, dropping back a level if symptoms flare.
- Keep any planned review appointment, especially if you have had concussions before or symptoms are slow to settle.
- A responsible adult to stay with the injured person for the first 24 hours
- The clinic's contact details, or an urgent-advice number — NHS 111 in England, Scotland or Wales, or your GP out-of-hours or Trust Phone First service in Northern Ireland — saved, and 999 understood for red flags
- A written note of when symptoms started and how they are changing
- School, college or employer informed so studies/work can be eased back
- Sports coach informed so return to play is not rushed
- Driving paused until a clinician advises it is safe
- A follow-up plan if symptoms last beyond four weeks
⚠ Get urgent help if…
- Loss of consciousness, or becoming more drowsy or hard to wake — call 999.
- A severe or rapidly worsening headache — call 999.
- Repeated vomiting — call 999.
- A seizure or convulsion, or limbs twitching or going stiff — call 999.
- Weakness, numbness or tingling in the arms or legs, or problems walking — call 999.
- Double vision, slurred speech, unusual or very agitated behaviour, or increasing confusion — call 999.
- Severe neck pain or tenderness, or any suspicion of a skull fracture (clear fluid or blood from the nose or ears) — call 999 and keep the neck still.
- Anyone on blood-thinning medicine, or with a bleeding disorder, who has a head injury should be assessed urgently even if they seem well.
Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.
General guidance — it doesn't replace the specific advice your specialist gives you.
Results & realistic expectations
There is no single test that confirms concussion. The diagnosis is a clinical judgement based on how the injury happened and the pattern of symptoms and signs. A normal CT or MRI scan is reassuring about bleeding or a fracture, but it does not rule out concussion, and a scan is not needed in most cases.
A good outcome is a full recovery of symptoms and a safe, staged return to study, work and sport. Recovery times vary widely, and being told to take longer than you would like is usually a sign of careful management, not bad news.
Most concussions settle within two to four weeks, but a minority of people have symptoms that last longer and need extra support. Each concussion is managed on its own merits; a history of several concussions, or symptoms that are slow to recover, may prompt a more cautious plan and a discussion about continued participation in contact sport.
Related tests, treatments or support
Assessment after a head injury often includes checking the neck, because neck (whiplash-type) problems can cause similar headaches and dizziness. Where symptoms persist, vestibular (balance) physiotherapy, vision assessment, headache management and psychological support are sometimes combined into a rehabilitation plan.
Follow-up & long-term care
If symptoms are settling normally, you may not need a formal review. If you have had concussions before, are recovering slowly, or symptoms last beyond about four weeks, you should be reviewed by a clinician with experience in concussion. Children and teenagers are generally followed up more closely and returned to activity more cautiously than adults.
- Complete the graduated return-to-sport stages in order, and do not skip steps even if you feel well.
- Tell coaches and teachers about the injury so effort can be increased safely.
- Seek review before the next season or competition if you have had repeated concussions.
- Learn to recognise concussion signs for the future, so the 'if in doubt, sit them out' rule can be applied early.
Repeat, follow-on and what comes next
- There is no scan that confirms concussion, so the assessment may be repeated over days as symptoms change.
- If symptoms persist beyond about four weeks, further assessment and targeted rehabilitation are common.
- A return-to-sport plan may be paused and restepped if symptoms flare when activity is increased.
Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.
What good aftercare looks like
- Clear written instructions on red flags and exactly when to call 999.
- A named contact for questions and a plan for review if symptoms persist.
- A staged, written return-to-study/work and return-to-sport plan that puts education or work first.
- Liaison with the school, employer or club so effort is increased safely.
- Onward referral to vestibular physiotherapy, vision, headache or psychological support if needed.
What affects the cost
Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:
- Whether the assessment is a one-off appointment or includes follow-up reviews over the recovery period.
- The seniority and experience of the clinician (for example a sport and exercise medicine consultant).
- Whether structured tools, balance or vision testing, or neuropsychological assessment are included.
- Whether a scan is arranged (and scans are not usually needed for concussion).
- Whether a written return-to-sport or return-to-study plan and liaison with a school or club is provided.
- Add-on rehabilitation, such as vestibular physiotherapy or headache management, if symptoms persist.
- The clinician's fee and what the assessment covers.
- Whether follow-up reviews are included or charged separately.
- Whether any tests or scans are included, and what triggers them.
- Whether a written management and return-to-sport plan is provided.
- What happens, and what it costs, if symptoms persist and rehabilitation is needed.
- How to reach the clinic urgently, and that emergencies should go to 999, not the clinic.
On the NHS? Assessment after a head injury is an NHS service: call 999 for red-flag signs. For urgent non-life-threatening advice within 24 hours, use NHS 111 in England, Scotland or Wales; in Northern Ireland, contact your GP out-of-hours service or your HSC Trust's Phone First service. Private sport and exercise medicine clinics may offer follow-up and graduated return-to-sport support, but this does not replace urgent NHS care.
You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.
Consent traps and marketing red flags
These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.
Consent traps
- Being given no clear written red-flag advice for what should prompt a 999 call.
- Being cleared to return to sport on the same day, or sooner than the staged programme allows.
- Being told a normal scan means there is 'no concussion' and a normal return to sport is safe.
- No discussion of how previous concussions or slow recovery change the plan.
- Return to school or work being treated as less important than return to sport.
Marketing red flags
- Promises of 'same-day clearance' to return to contact sport after a concussion.
- Offering or implying that a brain scan can diagnose or rule out concussion.
- Selling 'baseline testing' as a guarantee of safe return rather than one tool among many.
- Downplaying rest and the staged return as unnecessary for committed athletes.
- Any suggestion that concussion is trivial or that 'playing through it' shows toughness.
Choosing a specialist safely
- Check the specialist is on the GMC Specialist Register for this area.
- Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
- You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
- Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
- You're entitled to your total cost in writing — including any follow-up — before you decide.
Questions to ask your medical professional
Take this to your consultation. A good specialist will welcome every one of these.
- Are any of my symptoms or signs a reason to go to A&E now?
- Do I need a scan, and if so, what exactly is it looking for?
- What is my staged plan for returning to school or work, and then to sport?
- How long should I stay out of contact sport, given my history?
- What specific red-flag signs should make me or my family call 999?
- What should happen if my symptoms last longer than four weeks?
- Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
- Will you be the specialist who carries out my test, and who looks after me afterwards?
- What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
- What does a realistic result look like — and what can this test not achieve?
- What are my options, including waiting, doing nothing for now, or choosing a different approach?
- Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
- What is the total cost in writing, including any follow-ups, and how much time do I have to decide?
Frequently asked questions
Do I need a brain scan to diagnose concussion?
When can I go back to sport?
Is it dangerous to play on with a suspected concussion?
Should I wake someone repeatedly through the night after a head injury?
How long will recovery take?
Is private assessment better than the NHS?
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How we made this page
Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →
Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.
Sources & standards: UK Concussion Guidelines for Grassroots Sport (Sport and Recreation Alliance) GOV.UK — Concussion guidance for grassroots sport NHS — Head injury and concussion NICE NG232 — Head injury: assessment and early management Sport England — concussion guidelines for grassroots sport nidirect — urgent and emergency care services (Northern Ireland) nidirect — GP out-of-hours service (Northern Ireland)
Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.
Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.
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