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8
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Functional GI

37
Bristol Stool ScaleStool form types 1–7 and colonic transitRome IV Criteria for IBSIrritable bowel syndrome diagnosis and subtypeFunctional ConstipationRome IV — two of six items, IBS excludedOpioid-Induced ConstipationRome IV — constipation tied to opioid therapyFunctional DiarrhoeaRome IV — loose stools without predominant painFunctional Bloating / DistensionRome IV — bloating without other bowel disorder criteriaUnspecified Functional Bowel DisorderRome IV — bowel symptoms fitting no other categoryCentrally Mediated Abdominal Pain (CAPS)Rome IV — continuous pain unrelated to gut eventsNarcotic Bowel SyndromeRome IV — opioid-induced hyperalgesia of the gutFaecal Incontinence (Rome IV)Rome IV — the criteria, and why nobody is askedFunctional Anorectal PainLevator ani, unspecified pain and proctalgia fugaxFunctional Defecation DisordersRome IV — dyssynergia and inadequate propulsionInfant RegurgitationRome IV — the happy spitter, and the alarm features that rule it outInfant ColicRome IV — recurrent unexplained crying in a well infant under 5 monthsInfant DyscheziaRome IV — straining before a soft stool, and why not to intervenePaediatric Functional ConstipationRome IV — two of six over one month, with overflow soiling as a criterionToddler's DiarrhoeaRome IV functional diarrhoea of childhood — painless, thriving childPaediatric Cyclic Vomiting SyndromeRome IV — both age bands, with different criteria for eachPaediatric Rumination SyndromeRome IV — infant and child/adolescent criteriaFunctional Nausea & Vomiting (Children)Rome IV — two separate disorders that can be met togetherAerophagiaRome IV — distension that increases through the dayPaediatric Functional DyspepsiaRome IV — four times a month, with PDS and EPS subtypingPaediatric Irritable Bowel SyndromeRome IV — plus the constipation clause clinicians missAbdominal MigraineRome IV — stereotypical incapacitating episodes weeks apartFunctional Abdominal Pain — NOSRome IV — the residual category, reached after the other threeNonretentive Faecal IncontinenceRome IV — soiling without retention, where laxatives make it worseFunctional DyspepsiaRome IV — with PDS and EPS subtypingRumination SyndromeRome IV — effortless regurgitation without retchingCyclic Vomiting SyndromeRome IV — stereotypical episodic vomitingCannabinoid HyperemesisRome IV — CVS pattern relieved by cannabis cessationChronic Nausea & VomitingRome IV — chronic nausea and vomiting syndromeBelching DisordersRome IV — supragastric vs gastric belchingFunctional HeartburnRome IV — heartburn with normal acid exposureReflux HypersensitivityRome IV — normal acid exposure, positive symptom associationFunctional Chest PainRome IV — non-cardiac, non-reflux chest painGlobusRome IV — painless lump-in-throat sensationFunctional DysphagiaRome IV — dysphagia with normal endoscopy and manometry
  1. Calculators
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  3. Belching Disorders
Functional GI

Belching Disorders

Rome IV — supragastric vs gastric belching

'Bothersome' is doing real work here. Belching is universal; the criterion is about impact on usual activities, not about frequency alone.

Objective intraluminal impedance measurement is required to distinguish the two — this cannot be done on history. Frequent, repetitive belching observed during the consultation supports supragastric belching.

The Rome IV criterion is a single symptom threshold — bothersome belching more than 3 days a week. Subtyping into supragastric and gastric belching requires impedance measurement and changes the treatment completely.

When to use
Use it in a patient whose belching is frequent enough and troublesome enough to interfere with daily life — which is a much smaller group than those who complain of belching, since belching is universal. The criteria are worth applying mainly to trigger the subtyping question, because that is where the actionable information sits. It is particularly useful in the patient with continuous, repetitive belching during the consultation, which is characteristic of supragastric belching and is often mistaken for a habit or dismissed. It is not applicable where belching is an incidental symptom alongside a dominant complaint of reflux or dyspepsia, both of which list belching as a supportive feature rather than a diagnosis.
Why use it
Because the treatment that works for the common subtype is behavioural, and it is almost never offered. Patients with excessive supragastric belching are typically prescribed proton pump inhibitors, simethicone and dietary advice about fizzy drinks, none of which addresses the mechanism — they are drawing air into the oesophagus by negative pressure or by pushing it in with the tongue, and immediately expelling it, in a learned and largely unconscious cycle. Speech and language therapy or behavioural treatment interrupts that cycle and works well. The criteria are also useful in the opposite direction: recognising gastric belching as physiological venting, which Rome IV says has no established clinical correlate, argues for addressing aerophagia-promoting behaviours and reconsidering the diagnosis rather than escalating drugs.
Formula, evidence and interpretation

About the Rome IV Criteria for Belching Disorders

The Rome IV criterion is a single symptom threshold — bothersome belching, severe enough to impact usual activities, from the oesophagus or stomach, more than three days a week, over three months with onset at least six months ago. What follows the diagnosis matters far more than the diagnosis itself: subtyping into excessive supragastric belching (air drawn into the oesophagus and expelled before reaching the stomach) and excessive gastric belching (venting of swallowed air from the stomach) requires objective impedance measurement, and the two have completely different treatments. Supragastric belching responds to behavioural therapy. Gastric belching, Rome IV notes, has no established clinical correlate.

On this page

  • Formula
  • Interpreting the result
  • Inputs
  • What it returns
  • How it is calculated
  • Facts & figures
  • Evidence
  • How it compares
  • Pearls & pitfalls
  • Critical actions
  • Why it exists
  • About the creator
  • Limitations
  • If you are the patient
  • FAQ
  • Related calculators
  • References

Formula

Belching disorder = bothersome belching (more than 3 days a week) arising from the oesophagus or stomach, for 3 months with onset at least 6 months ago Subtype (requires intraluminal impedance): air drawn into the oesophagus and immediately expelled -> excessive supragastric belching air escaping from the stomach -> excessive gastric belching
Bothersome
Rome IV defines this as severe enough to impact usual activities, and sets the frequency at more than 3 days a week.
Supragastric belching
Air drawn into the oesophagus by the patient and immediately expelled — a behaviour, and the type that responds to behavioural therapy.
Gastric belching
Air escaping from the stomach via a transient lower oesophageal sphincter relaxation. Physiological, with no established clinical correlate.
Intraluminal impedance
Required by Rome IV to distinguish the two; the subtype cannot be assigned on history alone.
  • Rome IV states explicitly that impedance measurement is required to separate the two types.
  • Excessive gastric belching has no established clinical correlate; supragastric belching is a behaviour and responds to behavioural therapy.

Interpreting the result

Meeting the criteria establishes that the belching is a problem; the subtype establishes what to do about it. In supragastric belching, refer for speech and language therapy or behavioural treatment and explain the mechanism explicitly — patients find it genuinely surprising that the air is not coming from the stomach, and that explanation is itself therapeutic because it reframes an involuntary-feeling symptom as an interruptible behaviour. Acid suppression has no role unless reflux coexists independently. In gastric belching, address the behaviours that promote air swallowing — rapid eating, carbonated drinks, chewing gum, smoking, and in some cases anxiety-driven swallowing — before escalating to drugs, and reconsider whether the complaint fits another diagnosis, since Rome IV's own position is that excessive gastric belching has no established clinical correlate. Where no impedance study has been done, observe the patient: frequent repetitive belching that continues through the consultation and stops when they are distracted or speaking strongly suggests the supragastric type and can justify a behavioural referral without the test.

ScoreBandWhat it meansAction
Criteria met, supragastric subtypeExcessive supragastric belchingAir drawn into the oesophagus and expelled without reaching the stomach — a learned, interruptible behaviourRefer for speech and language therapy or behavioural treatment; explain the mechanism. Acid suppression has no role
Criteria met, gastric subtypeExcessive gastric belchingPhysiological venting of swallowed air. Rome IV notes this subtype has no established clinical correlateAddress aerophagia-promoting behaviours; reconsider the diagnosis if the complaint is severe
Criteria met, subtype not characterisedBelching disorder — subtype unknownThe common real-world state, since impedance monitoring is not widely performedArrange impedance monitoring, or observe for the repetitive pattern that suggests supragastric belching
Criteria not metCriteria not metBelching that is frequent but not bothersome, or that does not meet the timing ruleFrequency alone is not the threshold — the criterion is impact on usual activities

What the Belching Disorders needs (3 inputs)

Timing
Criteria fulfilled for the last three months with symptom onset at least six months before diagnosis.
Bothersome belching from the oesophagus or stomach, more than 3 days a week
'Bothersome' carries the weight — Rome IV defines it as severe enough to impact usual activities. Belching itself is universal, so frequency alone does not make a disorder.
Subtype, where impedance measurement has been performed
Objective intraluminal impedance measurement is required to distinguish supragastric from gastric belching. This cannot be established from the history, though frequent repetitive belching observed during the consultation supports the supragastric type.

What it returns

Criteria met or not met
A single symptom threshold plus the timing rule — this is the simplest of the Rome IV gastroduodenal criteria sets.
Subtype — supragastric, gastric, or not characterised
Reported separately, because it is what determines treatment. 'Not characterised' is an honest and common state, since impedance monitoring is not widely performed.

How it is calculated

The two subtypes are different physiological events that happen to produce the same sound. Gastric belching is the normal venting of swallowed air from the stomach through transient relaxations of the lower oesophageal sphincter — a universal reflex, and the reason Rome IV states that excessive gastric belching has no established clinical correlate. Supragastric belching is not a reflex at all: air is drawn into the oesophagus by creating negative intrathoracic pressure, or injected by the tongue, and then immediately expelled without ever reaching the stomach. Because it is a behaviour rather than a reflex, it can be interrupted, and because it is learned it tends to be repetitive, frequent and absent during sleep or when the patient is distracted. Impedance monitoring separates them directly by showing whether the air movement reaches the stomach, which is why Rome IV names the test rather than describing a clinical distinction.

Facts & figures

The two subtypes are different events entirely
Supragastric belchingGastric belching
Origin of the airOesophagus — never reaches the stomachStomach
MechanismAir drawn in by negative pressure or pushed in by the tongue, then immediately expelledVenting through transient lower oesophageal sphincter relaxation
NatureLearned behaviour, largely unconsciousPhysiological reflex
PatternFrequent, repetitive; absent in sleep; often stops when distracted or talkingOccasional, related to swallowed air volume
TreatmentSpeech and language therapy or behavioural treatment — effectiveAddress air-swallowing behaviours; no established clinical correlate

Because the two sound identical, only impedance monitoring separates them objectively. The observable clue is the pattern: supragastric belching is repetitive and interruptible in a way physiological venting is not.

Evidence

Derivation — Rome Foundation, gastroduodenal disorders committee

2016

Consensus criteria from the Rome IV gastroduodenal disorders committee, published in Gastroenterology in 2016.

Consensus-derived. Rome IV formalised the separation of excessive supragastric and gastric belching, and stated explicitly that objective intraluminal impedance measurement is required to distinguish them and that gastric belching has no established clinical correlate.

Impedance characterisation of supragastric belching

2016

Studies using combined high-resolution manometry and impedance monitoring to characterise supragastric belching and distinguish it from gastric belching and from reflux-associated belching.

Demonstrated that in supragastric belching air enters and leaves the oesophagus without reaching the stomach, establishing the mechanism the behavioural treatment targets and confirming that the two subtypes cannot be separated on history alone.

How it compares

Belching Disorders vs Aerophagia

Overlapping but not identical — aerophagia describes excessive air swallowing reaching the stomach, whereas supragastric belching involves air that never gets there.

The terms are frequently used interchangeably and should not be. Aerophagia is swallowing air into the stomach, which then produces gastric belching, bloating and distension; supragastric belching is a behaviour in which air is drawn into the oesophagus and expelled without entering the stomach at all. Impedance monitoring separates them clearly. The practical difference is in treatment targets: aerophagia responds to modifying the behaviours that cause air swallowing, while supragastric belching needs behavioural therapy directed at the belching cycle itself. Rome IV's paediatric criteria retain aerophagia as a named disorder; the adult criteria fold the concept into the belching subtypes.

Belching Disorders vs Functional dyspepsia

Belching is a supportive feature of functional dyspepsia rather than a competing diagnosis — the question is which symptom is dominant.

Rome IV lists excessive belching among the supportive criteria for postprandial distress syndrome, and belching commonly accompanies both dyspepsia subtypes. A belching disorder is the right diagnosis when belching is itself the bothersome problem meeting the frequency threshold, not when it accompanies a dominant complaint of postprandial fullness, early satiation or epigastric pain. The two can coexist, and where they do both need addressing — but treating a patient's dyspepsia while ignoring disabling supragastric belching, or the reverse, is a common reason management appears to fail.

Open the Functional dyspepsia calculator →

Belching Disorders vs Gastro-oesophageal reflux disease

Belching accompanies reflux commonly, but supragastric belching is a distinct behaviour that acid suppression does not treat — and it can also trigger reflux events.

The relationship runs both ways. Reflux disease produces belching, and patients with supragastric belching are routinely given acid suppression on that assumption. But supragastric belching can also provoke reflux, since the air movement through the oesophagus is associated with lower oesophageal sphincter relaxation. Where the two coexist, treating the reflux alone will not stop the belching, and treating the belching behaviourally sometimes reduces the reflux. Impedance monitoring, which is required for the belching subtype anyway, characterises both simultaneously and is the efficient way to sort this out.

Pearls & pitfalls

  • 'Bothersome' is the threshold, not frequency. Belching is universal, and the criterion is impact on usual activities.
  • The subtype cannot be determined from the history. Rome IV states that objective impedance measurement is required, and guessing between them leads to the wrong treatment.
  • Observe the patient during the consultation. Frequent repetitive belching that continues while you talk and stops when they are distracted strongly suggests supragastric belching.
  • Supragastric belching is absent during sleep, because it is a behaviour rather than a reflex. Asking about night-time symptoms is a useful discriminator.
  • Acid suppression has no role in supragastric belching unless reflux coexists independently, yet it is what most of these patients are given.
  • Speech and language therapy is the effective treatment for supragastric belching and is markedly under-used.
  • Explaining the mechanism is therapeutic. Patients are usually unaware the air is not coming from the stomach, and reframing it as an interruptible behaviour changes what they believe is possible.
  • Rome IV says excessive gastric belching has no established clinical correlate — so a severe complaint attributed to it should prompt reconsideration rather than escalation.
  • Belching is a supportive feature of functional dyspepsia and of reflux disease. Where one of those is the dominant problem, this is not the right diagnosis.
  • Do not describe supragastric belching as a habit in front of the patient. It is largely unconscious, and that framing reliably causes offence.

Critical actions

  • Establish that the belching is bothersome in the Rome IV sense — impacting usual activities — rather than simply frequent.
  • Observe the belching pattern during the consultation and ask whether it occurs during sleep.
  • Arrange impedance monitoring where available to establish the subtype, since it determines the treatment.
  • Refer patients with supragastric belching for speech and language therapy or behavioural treatment.
  • Explain the supragastric mechanism explicitly — air entering and leaving the oesophagus without reaching the stomach — because the explanation itself helps.
  • Address aerophagia-promoting behaviours: rapid eating, carbonated drinks, chewing gum, smoking, and anxiety-driven swallowing.
  • Stop proton pump inhibitors prescribed for belching alone where there is no independent evidence of reflux.
  • Reassess for functional dyspepsia or reflux disease where belching accompanies a more dominant symptom.

Why this score exists

The committee's two substantive statements about belching are unusually blunt for a Rome document. The first is that impedance measurement is required to distinguish the subtypes — not recommended, required — which is a way of saying the clinical distinction cannot be made and should not be guessed. The second is that gastric belching has no established clinical correlate, which is close to conceding that one half of the category may not be a disorder at all. Taken together they push the clinician toward the supragastric subtype as the one worth identifying, and that is consistent with where the treatment evidence sits. The decision to keep the entry criterion to a single symptom threshold, rather than building a longer list, reflects the same judgement: the diagnosis is easy, and all the useful work happens after it.

About the creator

  • Vincenzo Stanghellini

    First author, Rome IV gastroduodenal disorders committee

    Chaired the committee that produced the Rome IV gastroduodenal criteria.

  • Jan Tack

    Co-author, Rome IV gastroduodenal disorders committee

    Co-authored the chapter and contributed to the physiological characterisation of belching subtypes.

Limitations

  • The subtype, which is the clinically useful part, requires impedance monitoring that is not widely available — so most patients meeting these criteria remain uncharacterised.
  • The entry criterion is a single subjective symptom threshold, with no objective anchor.
  • Rome IV itself states that excessive gastric belching has no established clinical correlate, which raises a real question about whether half the category is a disorder.
  • Expert consensus rather than a fitted rule — nothing in the criteria was calibrated against impedance findings, which is awkward given that impedance is what the criteria require to separate the two types.
  • Substantial overlap with functional dyspepsia and reflux disease, both of which list belching as a supportive feature, and the criteria give little help in deciding which is dominant.
  • Does not address the anxiety that frequently accompanies and drives supragastric belching.
  • The evidence base for behavioural treatment, while consistent and positive, rests on relatively small studies.
  • Adult criteria fold aerophagia into the belching subtypes while the paediatric criteria retain it separately, which makes the terminology inconsistent across age groups.

If you are the patient

Belching disorders means burping often enough and troublesomely enough that it interferes with your daily life — the formal definition is more than three days a week, bad enough to affect what you can do. Everyone belches, so the threshold is about the impact rather than the count. There are two quite different types, and telling them apart matters because the treatments are completely different. In the first type, called supragastric belching, air is drawn into the gullet and immediately pushed straight back out again without ever reaching the stomach. It is a learned pattern that happens without you being aware of it, which is why it can feel impossible to control, and it stops during sleep. It is not a bad habit and it is not something you are doing on purpose. The important thing is that it responds well to a specific type of therapy from a speech and language therapist, who teaches you how to interrupt the cycle — this genuinely works and is offered far less often than it should be. Acid-reducing tablets do not help this type at all. In the second type, gastric belching, air really is coming up from the stomach after being swallowed, and the useful steps are practical: eating more slowly, avoiding fizzy drinks and chewing gum, and stopping smoking. A test called impedance monitoring is the only way to be certain which type you have, so it is worth asking whether it is available.

Frequently asked questions

What are the Rome IV criteria for belching disorders?#

Bothersome belching — severe enough to impact usual activities — from the oesophagus or stomach, more than three days a week, fulfilled for the last three months with symptom onset at least six months before diagnosis. It is the simplest of the Rome IV gastroduodenal criteria sets: a single symptom threshold plus the timing rule.

What is the difference between supragastric and gastric belching?#

Where the air comes from. In supragastric belching air is drawn into the oesophagus by negative pressure or pushed in by the tongue and immediately expelled, never reaching the stomach — it is a learned behaviour. In gastric belching, swallowed air is vented from the stomach through transient lower oesophageal sphincter relaxations, which is a normal reflex. They sound identical, and only impedance monitoring separates them.

How is supragastric belching treated?#

Speech and language therapy or behavioural treatment, which interrupts the belching cycle and works well. Explaining the mechanism is itself part of the treatment, because patients are usually unaware the air is not coming from the stomach and find that reframing changes what they believe is controllable. Acid suppression has no role unless reflux coexists independently.

Do you need a test to diagnose a belching disorder?#

Not for the diagnosis, which rests on symptoms alone. But Rome IV states that objective intraluminal impedance measurement is required to distinguish the subtypes, and the subtype is what determines treatment. Where impedance monitoring is unavailable, observing frequent repetitive belching during the consultation that stops when the patient is distracted, and confirming it is absent in sleep, strongly supports the supragastric type.

Why does Rome IV say gastric belching has no clinical correlate?#

Because venting swallowed air from the stomach is a universal physiological reflex, and no consistent relationship has been established between an excess of it and clinical disease. The practical implication is that a severe complaint attributed to gastric belching should prompt reconsideration of the diagnosis rather than escalation of treatment, and that addressing air-swallowing behaviours is more useful than prescribing.

Is excessive belching the same as aerophagia?#

No, though the terms are often used interchangeably. Aerophagia is excessive swallowing of air into the stomach, which produces gastric belching, bloating and distension. Supragastric belching involves air that never reaches the stomach at all. The adult Rome IV criteria fold aerophagia into the belching subtypes, while the paediatric criteria retain it as a separate named disorder.

Does supragastric belching happen during sleep?#

No, and that is a useful discriminator. Because supragastric belching is a learned behaviour rather than a reflex, it is absent during sleep. Asking about night-time symptoms takes seconds and helps distinguish it from gastric belching and from reflux, both of which can occur at night.

Can belching disorders coexist with reflux or dyspepsia?#

Yes, and commonly. Belching is listed as a supportive feature of both functional dyspepsia and reflux disease. A belching disorder is the right diagnosis when belching is itself the dominant bothersome symptom rather than an accompaniment. Where both are present both need addressing — and supragastric belching can itself provoke reflux events, so treating the belching behaviourally sometimes improves the reflux.

Related calculators

  • Functional Dyspepsia — Rome IV — with PDS and EPS subtyping
  • Rumination Syndrome — Rome IV — effortless regurgitation without retching
  • Aerophagia — Rome IV — distension that increases through the day
  • Chronic Nausea & Vomiting — Rome IV — chronic nausea and vomiting syndrome
  • Functional Heartburn — Rome IV — heartburn with normal acid exposure
  • Rome IV Criteria for IBS — Irritable bowel syndrome diagnosis and subtype

References

Original / primary reference

  1. Stanghellini V, Chan FKL, Hasler WL, Malagelada JR, Suzuki H, Tack J, Talley NJ. Gastroduodenal Disorders. Gastroenterology. 2016;150(6):1380-1392 (Rome IV).

Related disorders

  1. Aziz Q, Fass R, Gyawali CP, Miwa H, Pandolfino JE, Zerbib F. Esophageal Disorders. Gastroenterology. 2016;150(6):1368-1379 (the oesophageal disorders belching is distinguished from).

Clinical practice update

  1. Moshiree B, Drossman D, Shaukat A. AGA Clinical Practice Update on Evaluation and Management of Belching, Abdominal Bloating, and Distention: Expert Review. Gastroenterology. 2023;165(3):791-800.

Last updated July 31, 2026. Clinical knowledge base written and curated by GastroAGI Team from primary medical literature.

Written from primary literature and not yet independently clinically reviewed.

For use by qualified healthcare professionals. This calculator supports clinical judgement and does not replace it.