Oesophageal manometry
A test that measures how well the muscles of the gullet squeeze and how the valve into the stomach works, used to investigate swallowing problems and to plan treatment such as anti-reflux surgery.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- Manometry measures how the gullet muscles squeeze and how the valve to the stomach works, mainly to investigate swallowing problems and to plan treatment.
- It is the key test for muscle disorders of the gullet such as achalasia, and is often done before anti-reflux surgery to check the gullet works well enough.
- You stay fully awake; a thin tube goes through the nose and can feel strange or make you gag briefly, but the test is not usually painful and carries little risk.
- It shows how the gullet moves but does not look at the lining or treat anything, and the result is interpreted alongside your symptoms and other tests.
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.
Shows how well the gullet muscles squeeze and how the valve to the stomach works
People who cannot tolerate a tube passed through the nose, where an alternative approach may be discussed.
Any gagging sensation settles quickly. You may have a mildly sore throat, watering eyes or a runny nose for a short time.
Clear advice on restarting any paused medicines.
Any gagging sensation settles quickly. You may have a mildly sore throat, watering eyes or a runny nose for a...
You can eat, drink, drive and return to your usual activities, as no sedation is involved. Restart any paused...
A specialist analyses the pressure recording, often using an agreed classification system, and produces a report...
Your referring clinician explains what the test showed in the context of your symptoms and any other tests, and...
What is oesophageal manometry?
Oesophageal manometry is a test that measures how the muscles of your gullet (oesophagus) work when you swallow, and how the valve between the gullet and stomach opens and closes. A thin, soft tube with pressure sensors is passed through your nose and down into your gullet, and you are asked to take small sips of water while the pressures are recorded.
It is used to investigate problems such as difficulty swallowing, food or liquid sticking, non-cardiac chest pain or regurgitation, once a camera test has ruled out a blockage. It is the main test for diagnosing conditions where the gullet muscles do not work normally, such as achalasia, where the valve fails to relax. It is also commonly done before anti-reflux surgery, to check the gullet squeezes well enough and to position other tests accurately.
Manometry gives information about how the gullet moves; it does not look at the lining or treat anything. It is often done at the same visit as 24-hour pH or impedance monitoring, with the manometry used to place the pH sensor correctly. The tube can feel strange and make you gag briefly as it goes down, but the test is not usually painful and you stay fully awake throughout.
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.
High-resolution manometry
The standard modern version, using a tube with many closely spaced sensors to map pressures along the whole gullet in detail. Results are usually classified using an agreed...
Manometry before anti-reflux surgery
Done to check the gullet squeezes well enough before an operation for reflux, and to rule out a muscle disorder that would change the plan.
Manometry to investigate swallowing problems
Used when food or liquid sticks or is hard to swallow and a camera test has not found a blockage, to look for conditions such as achalasia or spasm.
Combined manometry and pH/impedance study
Often done at the same visit, with manometry used to position the pH sensor accurately before 24-hour acid and reflux monitoring.
Preparing for your test
- Follow the unit's fasting instructions — usually no food for about six hours and only small sips of water up to about two hours before.
- Ask which medicines to pause, as some affect gullet muscle activity; certain reflux, motility and pain medicines may need stopping for a set time beforehand.
- Tell the team about nasal problems, nosebleeds, or any difficulty breathing through your nose, as the tube goes through the nose.
- Mention any heart or breathing conditions, and any previous surgery to the gullet or stomach.
- Let them know if you are pregnant or might be, so timing and medicines can be considered.
- You can usually drive and return to normal activities afterwards, as no sedation is used.
- Allow time for the appointment, including preparation and a short settling period after the tube is removed.
What happens
When you arrive, the test is explained and your nostrils may be checked and given a little numbing gel. You sit upright and a thin, soft tube with pressure sensors is gently passed through your nose, down the back of your throat and into your gullet. Swallowing a sip of water helps it pass; this part can feel strange and may make you gag briefly, but it usually settles quickly.
Once the tube is in place, you lie back and are asked to take small, measured sips of water at intervals, sometimes in different positions or with different sized swallows. The sensors record the pressure waves as your gullet muscles squeeze and as the valve into the stomach opens and closes. You stay fully awake and can breathe normally throughout.
The recording usually takes about 20–45 minutes. If a pH or impedance study is being done as well, the manometry helps position the sensor before the finer tube is left in place. Afterwards the tube is removed, and you can usually eat, drink and go about your day as normal. The recording is then analysed and reported by a specialist.
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…
- People who cannot tolerate a tube passed through the nose, where an alternative approach may be discussed.
- As a way to look at the lining of the gullet, which needs a camera test instead.
- When symptoms clearly point to a blockage that has not yet been excluded by a camera test.
- People with certain nasal, throat or facial problems that make passing the tube unsafe, until assessed.
Delay or rearrange if…
- You have not been able to follow the fasting instructions, as a full stomach makes the test unsafe and unclear.
- Medicines that affect gullet muscle activity have not been paused as advised.
- You have a heavy nosebleed, nasal infection or recent nasal surgery.
- You are acutely unwell and need assessment in your own right first.
- Pregnancy, unless the test is genuinely needed and timing has been discussed.
Alternatives to discuss
- No test, if the diagnosis is already clear from other findings.
- A gastroscopy or barium swallow to look at the structure and lining of the gullet.
- A timed barium swallow to assess emptying, in some conditions such as achalasia.
- pH or impedance monitoring alone, if the main question is about acid reflux rather than muscle function.
- Specialist review to decide which test, if any, is needed.
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
- Shows how well the gullet muscles squeeze and how the valve to the stomach works
- Is the main test for diagnosing muscle disorders of the gullet, such as achalasia
- Helps explain difficulty swallowing or regurgitation when a camera test has found no blockage
- Helps plan and make anti-reflux surgery safer by checking the gullet works well enough
- Allows a pH or impedance sensor to be placed accurately for reflux monitoring
Risks & complications
- A strange or gagging sensation as the tube passes through the nose and throat
- A mildly sore throat or runny nose afterwards
- Watering eyes or the urge to swallow or cough while the tube is in
- Some discomfort that settles quickly once the tube is removed
- A minor nosebleed
- Difficulty passing the tube, occasionally meaning the test cannot be completed
- A non-diagnostic recording that needs to be repeated or interpreted with caution
- Brief lightheadedness or retching during tube placement
- The tube passing into the windpipe rather than the gullet, which is recognised and corrected
- Very rarely, injury to the lining of the nose, throat or gullet
- An incomplete answer, so that other tests are still needed to explain the symptoms
Manometry is a low-risk test with no sedation and no cuts, so the main downside is temporary discomfort while the tube is in place. The most important limitations are that it only measures how the gullet moves — not the lining, which needs a camera test — and that the result has to be interpreted alongside your symptoms and other findings. Ask which medicines to stop beforehand, as some change the muscle activity and can affect the result, and ask what the test will and will not be able to tell you.
Published figures to discuss
Oesophageal manometry is a low-risk test with no sedation and no incisions, so meaningful complication rates do not really apply; serious problems such as injury to the gullet are very rare. The more relevant uncertainty is diagnostic: the test shows how the gullet moves on the day, and its usefulness depends on a good-quality recording and on interpreting the findings alongside symptoms and other tests. Because exact figures depend on the unit and the clinical situation, specific percentages are avoided here.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Physical harm from the test | Very low | There is no sedation and no incision. The catheter is removed at the end of the test. | Guide sourcesClinical context |
| Nose or throat discomfort, gagging or watering eyes | Common and temporary | This is unpleasant for some patients but usually settles quickly after the catheter is removed. | Guide sourcesClinical context |
| Bleeding, aspiration or oesophageal injury | Very rare | Higher-risk patients, recent surgery and known strictures need individual discussion before testing. | Esophageal Manometry — StatPearls (NCBI)ncbi.nlm.nih.govSource-linked context |
| Incomplete or inconclusive study | Recognised | Some patients cannot tolerate the catheter or cannot complete the swallow protocol. Further testing or repeat study may be needed. | Esophageal Manometry — StatPearls (NCBI)ncbi.nlm.nih.govSource-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
There is no physical recovery from manometry beyond a possible mild sore throat or runny nose. Because no sedation is used, you can usually eat, drive and return to normal activities straight away. What matters afterwards is when the recording is reported and what it shows.
- A mildly sore throat or runny nose for a short time
- Watering eyes or the urge to swallow during the test, settling once the tube is out
- No need for time off, as there is no sedation or wound
- Waiting days to a couple of weeks for the recording to be reported
- The result being interpreted alongside your symptoms and other tests
Aftercare
- You can eat and drink normally once the tube is removed, unless told otherwise.
- Restart any medicines that were paused for the test only as your team advised.
- A simple throat lozenge or warm drink can ease a mildly sore throat.
- Return to your normal activities, including driving, as no sedation is used.
- Make sure you know who will report the recording and when and how you will get the result.
- Ask what the result will mean for your treatment or any further tests.
- Seek advice if you have a persistent nosebleed, significant throat pain or any symptom you were told to report.
- Fasting instructions understood (no food ~6h, sips of water as advised)
- Knowing which medicines to pause beforehand and when to restart them
- Any nasal problems or nosebleeds mentioned in advance
- Knowing whether a pH/impedance study is being done at the same visit
- Understanding that you can usually drive home, as there is no sedation
- Knowing who reports the recording and when results are due
- A point of contact for questions or problems afterwards
⚠ Get urgent help if…
- A nosebleed that does not stop after gentle pressure
- Severe or worsening throat, chest or neck pain after the test
- Difficulty breathing, or new shortness of breath
- Coughing up blood
- A high temperature or feeling very unwell after the test
- Difficulty swallowing your own saliva
- Any symptom the unit specifically told you to report — contact them or seek urgent care
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
A useful result is a good-quality recording that shows how your gullet muscles squeeze and how the valve to the stomach relaxes when you swallow. Findings are usually described using an agreed classification, which can point to a normal pattern, weak or absent squeezing, spasm, or a condition such as achalasia where the valve does not relax properly.
The result is interpreted alongside your symptoms and other tests, such as a camera test or pH monitoring. A normal manometry is reassuring about the gullet muscles but does not rule out every cause of symptoms, and an abnormal result does not always fully explain how you feel. Your clinician should explain what the findings mean for your treatment, including whether surgery is suitable or what other steps may help.
Manometry reflects how your gullet was working on the day of the test. For a clear diagnosis such as achalasia, the result usually remains relevant, though the test may be repeated to check how the gullet works after treatment. If symptoms change or the picture is unclear, the test may need repeating or combining with others. Any diagnosis is interpreted in the light of your ongoing symptoms.
Related tests, treatments or support
Manometry is frequently combined with 24-hour pH or impedance monitoring at the same visit, with the manometry used to position the pH sensor accurately. It is usually done after a gastroscopy has looked at the lining and ruled out a blockage, and it is a standard part of the work-up before anti-reflux surgery. Your team should explain how these tests fit together and what each one adds.
Follow-up & long-term care
After the test, the recording is analysed and reported, which takes time, so results are not usually available on the day. Your referring clinician then explains the findings alongside your symptoms and any other tests, and what happens next — reassurance, treatment, surgery planning or further investigation. You should be told who to contact if you do not hear back or your symptoms change in the meantime.
Repeat, follow-on and what comes next
- If the tube cannot be passed or the recording is poor, the test may need to be repeated.
- Manometry may be repeated after treatment, for example to check how the gullet works following treatment for achalasia.
- The result is interpreted alongside other tests and may need combining with pH monitoring or imaging.
- An inconclusive result can mean further investigation rather than a firm answer.
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 advice on restarting any paused medicines.
- Interpretation of the recording alongside your symptoms and other tests, not in isolation.
- A sensible plan if the recording is non-diagnostic or needs repeating.
- Clear information on who reports the test, when you get results, and what they mean for treatment.
- A named contact for questions or problems afterwards.
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 specialist unit or facility carrying out and reporting the test
- Whether 24-hour pH or impedance monitoring is done at the same visit
- Who analyses and reports the recording, and how quickly
- Whether it is arranged as part of a consultation or as a stand-alone test
- Any consultation to explain the results and plan next steps
- Further tests the result may lead to, charged separately
- The fee for the test and what it includes
- Whether pH or impedance monitoring is included or charged separately
- Whether analysis and a written report are included
- Whether a consultation to explain the results is part of the price
- How quickly the report and results will be available
- What happens, and what it costs, if the recording is non-diagnostic and needs repeating
- The cancellation policy
On the NHS? Oesophageal manometry is available on the NHS in specialist units when clinically indicated; private testing may be used for speed or as part of a reflux or swallowing assessment.
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 explaining which medicines to stop, so the recording is affected and may be misleading.
- Implying the test looks at the lining of the gullet, when it only measures muscle function.
- Not setting out what happens if the result is normal but symptoms continue.
- Not explaining who reports the recording and when results are due.
- Not clarifying which costs are extra in private care, including any combined pH study or repeat test.
Marketing red flags
- Offering manometry as a general 'reflux check' without a clear clinical question.
- Not explaining that a camera test is usually needed first to exclude a blockage.
- Implying the test can diagnose or rule out all causes of swallowing symptoms.
- Bundling the test into a package without clinical interpretation in context.
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.
- Why am I having this test, and what will the result change?
- Which of my medicines should I stop before the test, and when can I restart them?
- Will I have pH or impedance monitoring at the same visit?
- What happens if the test is normal but my symptoms continue?
- If a muscle problem such as achalasia is found, what are my treatment options?
- Who will report the recording, and when and how will I get the result?
- 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
Does oesophageal manometry hurt?
Will I be sedated?
Why do I need this as well as a camera test?
Do I need to stop my medicines beforehand?
When will I get my results?
Is manometry available on 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: UCLH — Oesophageal manometry (patient information) North Bristol NHS Trust — Oesophageal manometry and 24-hour pH or impedance monitoring Esophageal Manometry — StatPearls (NCBI) Clinical application of high-resolution oesophageal manometry — PMC British Society of Gastroenterology — clinical resources
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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