Examination under anaesthetic (EUA)
A careful examination of part of a child's body while they are asleep under a general anaesthetic, usually to find or confirm a diagnosis when an awake examination would be difficult or distressing.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- An EUA lets the team examine part of a child's body gently and thoroughly while they are asleep, when an awake examination would be too difficult or distressing.
- The aim is usually to find or confirm a diagnosis; it may give an answer on the day, or be one step towards one.
- A small procedure (such as a biopsy or removing wax) is sometimes done at the same time – ask exactly what is planned and consent to.
- It needs a general anaesthetic, which in a healthy child is generally low-risk, but recovery and warning signs should still be discussed.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your surgeon will give you advice for your situation.
Allows a gentle, thorough and pain-free examination that would be too difficult while awake
Where the needed information could be obtained safely with an awake examination or a less invasive test.
Your child wakes in the recovery area. They may be sleepy, a little confused or upset, and possibly feel sick. There is usually a minimum recovery time...
A clear explanation of the findings on the day where possible, and a plan for any biopsy results.
Your child wakes in the recovery area. They may be sleepy, a little confused or upset, and possibly feel sick...
Your child may be tired and unsteady for up to 24 hours. Keep the day quiet, avoid activities where they could...
Some discomfort in the area examined is normal and usually settles with simple pain relief such as paracetamol. A...
Most children are fully back to normal and can return to nursery or school, often after about one day off. The...
What is an examination under anaesthetic (EUA)?
An examination under anaesthetic (EUA) is a thorough examination of part of the body carried out while a child is asleep under a general anaesthetic. It is used when an examination needs to be detailed, gentle and pain-free, and would be too difficult, uncomfortable or distressing for a child to have while awake.
An EUA can look at many areas – for example the ears, the bottom (anus and rectum), the genital area, the mouth and airway, the eyes, or a joint. The main aim is usually to find or confirm a diagnosis. Sometimes the team also does a small procedure at the same time, such as taking a biopsy, removing wax, stretching a narrowing, or treating something they find – they will explain in advance what is planned.
An EUA is mainly about getting clear information so the right decisions can be made. It may give an answer straight away, or it may be one step in working out what is going on. Your child's team will tell you what they hope to learn and what might happen next.
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.
EUA of the ears
A detailed look in the ears, sometimes with gentle suction to clear wax or discharge, when an awake examination is not possible.
EUA of the bottom (anus and rectum)
Examination of the anus and lower bowel, for example for symptoms or a known anorectal problem, sometimes with a look into the lower bowel (sigmoidoscopy) or a biopsy.
EUA of the genital or pelvic area
A gentle examination of the genital area, done asleep so it is comfortable and dignified, sometimes for symptoms, an abnormality or after an injury.
EUA of the mouth, throat or airway
A close look at the mouth, throat or airway, sometimes with a telescope, to find the cause of symptoms such as noisy breathing.
Preparing for your procedure
- Talk with the team about why an EUA is advised, what they hope to find, and whether any small procedure might be done at the same time.
- Go through consent before the examination. An older child or young person who understands what is involved may be able to give consent themselves; otherwise a parent or someone else with parental responsibility gives it. Either way, your child should be involved and their agreement sought where possible. Make sure consent also covers any biopsy or treatment that may be needed, and ask any questions.
- Tell the team about your child's other conditions and all medicines, including any blood thinners.
- Follow the fasting instructions carefully, as your child needs an empty stomach for the general anaesthetic.
- Bring comfort items and plan for a day-case visit, with a parent able to stay.
- Arrange for your child to be collected and looked after for the rest of the day after the anaesthetic.
- Ask for written aftercare advice and a number to call if you are worried.
What happens
Your child is given a general anaesthetic, so they are asleep and feel nothing during the examination. Depending on their age, the anaesthetic may be started with a flavoured gas to breathe or through a small cannula; you can usually be with them as they go off to sleep.
Once asleep, the specialist carefully examines the relevant area, often using a good light, a magnifier or a telescope. If a small procedure such as a biopsy or removing wax was agreed, it is done now. The examination itself is usually short, often around 15–30 minutes.
Your child then wakes up in the recovery area, where the team checks they are comfortable and recovering well. There is usually a minimum recovery period (often around two hours) before going home. The team will tell you what they found, where possible, and explain anything that needs to happen next.
Is this procedure 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…
- Where the needed information could be obtained safely with an awake examination or a less invasive test.
- Where a child is currently too unwell for a general anaesthetic and the examination is not urgent.
- Where symptoms point to a problem that needs urgent care or a different specialty rather than a planned examination.
- Where the family has not had the chance to discuss and agree what is planned.
Delay or rearrange if…
- Your child has a current cold, chest infection or other acute illness, unless the examination is urgent.
- Fasting instructions for the anaesthetic have not been followed.
- Blood-thinning or other medicines need adjusting before a planned biopsy or procedure.
- Consent, including for any biopsy or treatment, has not been fully discussed.
Alternatives to discuss
- An awake examination or a clinic examination where that is feasible and not too distressing.
- Imaging or another diagnostic test that may answer the question without an anaesthetic.
- Watchful waiting or review, where the situation allows.
- A second opinion or referral to a specialist children's centre.
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.
Comfort, sedation or contrast choices
If local anaesthetic, sedation, contrast or pain relief is used, ask what is planned, why, and what it means afterwards.
Benefits
- Allows a gentle, thorough and pain-free examination that would be too difficult while awake
- Often helps find or confirm a diagnosis
- Lets a small procedure, such as a biopsy, be done at the same time if needed
- Avoids distress for the child compared with an awake examination
- Helps the team plan the right treatment based on clearer information
Risks & complications
- Feeling sick or being sick for a short time after the anaesthetic
- A sore throat if a breathing tube or airway device was used
- Feeling drowsy, dizzy or unsteady for the rest of the day
- Mild discomfort in the area examined for up to a day or two
- Being upset, clingy or unsettled as the anaesthetic wears off (emergence agitation)
- Minor bleeding or spotting if a biopsy or small procedure was done
- A headache
- Needing to stay a little longer in recovery
- A more serious reaction to the anaesthetic medicines
- Injury related to the examination or any procedure done
- Breathing or other problems during the anaesthetic needing extra treatment
Most healthy children recover quickly from an EUA, and serious problems are rare. Risks from the general anaesthetic are higher in babies and in children with significant other conditions, particularly heart disease, so tell the team about your child's health. If a biopsy or small procedure is done, ask what extra after-effects or warning signs to expect.
Published figures to discuss
An EUA itself is low-risk for most children; the main risks come from the general anaesthetic, plus any small procedure done at the same time. In modern anaesthesia serious problems are uncommon, and risk is higher in babies and in children with significant other conditions, especially heart disease. The figures below come from UK paediatric anaesthetic information and are cautious context, not a prediction for an individual child.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Common minor anaesthetic effects (sickness, sore throat, dizziness, headache) | Around 10–20 in every 100 children | Usually short-lived and treatable; these are expected rather than a sign of something wrong. | Guide sourcesClinical context |
| Serious allergic reaction to an anaesthetic medicine | About 2–3 in every 100,000 anaesthetics | Rare; the team is trained and equipped to treat reactions immediately. | Guide sourcesClinical context |
| Death directly due to anaesthesia | Very rare – roughly 10 deaths per million anaesthetics across all ages | Risk is higher in babies and in children with significant conditions such as heart disease; an otherwise healthy child is at the lower end. | Sheffield Children's NHS Foundation Trust – Risks of having an anaestheticlibrary.sheffieldchildrens.nhs.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
Recovery after an EUA is usually quick, and most of it is recovering from the general anaesthetic rather than from the examination. Most children are home the same day and back to normal within a day or two.
- Feeling tired, unsteady or a little uncoordinated for up to 24 hours
- Feeling sick or having a reduced appetite for a short time
- A sore throat if a breathing device was used
- Mild discomfort in the area examined for the first 48 hours
- A small amount of spotting or discharge if a biopsy or small procedure was done
Aftercare
- Keep the rest of the day quiet and supervise your child closely while the anaesthetic wears off.
- Avoid activities where your child could fall or hurt themselves for 24 hours.
- Offer fluids first and then light food; do not worry about a reduced appetite as long as they are drinking.
- Give simple pain relief such as paracetamol if your child is uncomfortable, following the dose instructions.
- Follow any specific advice about the area examined or any procedure that was done.
- Watch for the warning signs you were given and keep the contact number to hand.
- Keep any follow-up appointment, especially if a biopsy was taken.
- A responsible adult to take your child home and stay with them
- A quiet day planned with no nursery, school or risky activities
- Simple pain relief at home (e.g. paracetamol)
- Written aftercare instructions and a contact number
- Clear note of any specific aftercare for a procedure that was done
- Follow-up appointment noted if a biopsy was taken
- Clear list of warning signs and what to do
⚠ Get urgent help if…
- Severe or worsening pain not helped by simple pain relief
- Heavy or persistent bleeding from the area examined or biopsy site
- A high temperature or signs of infection developing
- Repeated vomiting or being unable to keep fluids down
- Difficulty breathing, noisy breathing or swelling around the mouth or throat
- Your child becoming very drowsy, floppy or difficult to wake
- Not passing urine, or being unable to settle and very distressed
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 surgeon gives you.
Results & realistic expectations
A good outcome is a clear, gentle examination that gives the team the information they were looking for. They can often tell you the main findings on the day, although results from any biopsy take longer.
An EUA gives information; it does not always give a final answer in one step, and a normal examination does not always rule out every possible problem. Sometimes further tests or a repeat examination are needed. Your child's team will explain what the findings mean and what happens next.
An EUA is usually a one-off examination for a particular question, so it does not have a lasting result in the way a treatment does. If symptoms change or come back, or if results are unclear, the team may recommend another examination or different tests later.
Related tests, treatments or support
An EUA is often combined with a small procedure done under the same anaesthetic, such as a biopsy, removing wax, a look into the lower bowel (sigmoidoscopy), or treating something found at the time. This avoids a second anaesthetic. Your team will explain anything they plan to do and seek your consent first.
Follow-up & long-term care
The team will tell you the findings where they can on the day, and arrange follow-up if needed – for example to give biopsy results, discuss treatment, or plan further tests. You should be told who to contact if you have questions or if your child is unwell after going home.
Repeat, follow-on and what comes next
- The examination may be normal or unclear, and a repeat examination or further tests may be needed.
- A biopsy occasionally needs to be repeated if the first sample is not adequate.
- Findings may lead on to a separate treatment or operation later.
- If symptoms return, the team may recommend re-examining at a later date.
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
- A clear explanation of the findings on the day where possible, and a plan for any biopsy results.
- Written aftercare advice and a named contact for problems after discharge.
- Simple pain-relief guidance and specific care advice for the area examined.
- A follow-up plan for results and next steps, with warning signs and what to do for each.
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:
- The type and length of the examination, and which specialist carries it out
- Whether a small procedure, such as a biopsy, is done at the same time
- The general anaesthetic and the hospital or theatre facility fee
- Laboratory fees if a biopsy or other sample is analysed
- Follow-up appointments to give results and discuss next steps
- Any further tests or treatment that the findings lead to
- The specialist's fee and the facility fee
- The general anaesthetic and anaesthetist's fee
- Whether any biopsy or small procedure, and its laboratory fee, is included
- Follow-up appointments to give results
- What happens, and who pays, if further tests or treatment are needed
- What happens if a complication occurs
- The cancellation policy
On the NHS? An EUA is routinely available on the NHS when an examination under anaesthetic is needed; private care may be used for speed, choice of hospital, or a second opinion.
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
- Not making clear whether any biopsy or treatment will be done at the same time, and consenting only to 'a look'.
- Not explaining that a normal examination does not always rule out every problem.
- Not discussing alternatives to an examination under general anaesthetic.
- No clear plan for who gives the results, when, and what the different outcomes would mean.
- No written aftercare advice or contact route before discharge.
Marketing red flags
- Describing a general anaesthetic for a child as without risks or trivial.
- Offering an EUA without clearly setting out what is planned and what might be found.
- Promising a definite diagnosis from a single examination.
- Not providing clear aftercare and a contact route for problems.
Choosing a specialist safely
- Check the surgeon 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 surgeon 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 surgeon will welcome every one of these.
- What exactly are you hoping to find or confirm with this examination?
- Will you do any procedure, such as a biopsy, at the same time, and what does that involve?
- Could this be done without a general anaesthetic, and why is one needed?
- When and how will we get the findings and any biopsy results?
- What happens if the examination is normal, abnormal or unclear?
- What warning signs should I watch for at home, and who do I call?
- 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 surgeon who carries out my procedure, 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 procedure 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
Why does my child need a general anaesthetic just for an examination?
Will the team do anything as well as look?
How long will my child be in hospital?
When will we get the results?
Is the anaesthetic safe for my child?
Is an EUA available on the NHS?
Who gives consent for the examination?
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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: Great Ormond Street Hospital – After an examination under anaesthetic (EUA) Great Ormond Street Hospital – Your child's general anaesthetic Royal College of Anaesthetists – Anaesthesia and your child Sheffield Children's NHS Foundation Trust – Risks of having an anaesthetic Scottish Government — children's consent (Age of Legal Capacity (Scotland) Act 1991) Welsh Government — children's consent when engaging specialist services (guidance for professionals)
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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