About the Rome IV Criteria for Abdominal Migraine
Seven criteria, all required, over at least six months, with episodes occurring at least twice. Paroxysmal episodes of intense acute periumbilical, midline or diffuse abdominal pain lasting an hour or more, and this should be the most severe and distressing symptom. Episodes separated by weeks to months. Pain incapacitating and interfering with normal activities. A stereotypical pattern in that individual. Pain associated with two or more of anorexia, nausea, vomiting, headache, photophobia or pallor. And other medical conditions excluded after appropriate evaluation. Six months is the longest duration rule in the Rome IV child and adolescent chapter, and a deliberate exception — episodes separated by weeks to months cannot be characterised in a shorter window.
Formula
Abdominal migraine = ≥ 6 months, episodes occurring ≥ 2 times
AND paroxysmal intense periumbilical/midline/diffuse pain ≥ 1 hour,
and the most severe and distressing symptom
AND episodes separated by weeks to months
AND pain incapacitating, interfering with normal activities
AND stereotypical pattern and symptoms in that individual
AND ≥ 2 of: anorexia | nausea | vomiting | headache | photophobia | pallor
AND another medical condition excluded after appropriate evaluation- Six months
- The exception in a chapter that otherwise uses two months. Episodes separated by weeks to months need a longer observation period before a pattern is visible.
- Stereotypical
- The strongest positive feature, shared with cyclic vomiting syndrome. Variability in character or duration argues against the diagnosis and towards a search for a structural cause.
- Pallor
- One of the six associated features and the most distinctive. Caregivers describe a child going white or grey during an attack, and it is rarely volunteered unless asked.
- Rome IV requires the pain to be the most severe and distressing symptom, which distinguishes abdominal migraine from disorders where pain is one feature among several.
- Periumbilical, midline or diffuse — not localised to a quadrant. Localised pain points elsewhere.
- The associated features overlap almost entirely with typical migraine, which is the point.
- Most children have a family history of migraine, and many develop typical headache migraine later.
Interpreting the result
Ask about family history of migraine, which is present in most children and often makes the diagnosis land with the family immediately. Identify triggers, which overlap with headache migraine and are frequently modifiable — sleep deprivation, fasting, travel, excitement and stress are the usual ones, and a trigger diary is more useful here than in most functional disorders because the episodes are discrete enough to correlate. Treat individual attacks as you would a migraine, with early intervention, a quiet dark environment, antiemetics and analgesia; and consider prophylaxis where episodes are frequent or disabling enough to justify it. Explain that many children go on to develop typical headache migraine, which prevents that transition being experienced as a new and unexplained illness later. Where criteria are not met, the failing criterion directs you. Episodes shorter than an hour, or occurring more often than every few weeks, do not fit — reconsider functional dyspepsia, IBS or functional abdominal pain NOS. And recurrent severe abdominal pain with vomiting always warrants a thought about intermittent obstruction, particularly malrotation with volvulus, and about urinary tract obstruction, both of which can produce strikingly stereotypical episodes with complete recovery in between.
| Score | Band | What it means | Action |
|---|---|---|---|
| Criteria met | Abdominal migraine | Stereotypical incapacitating episodes lasting an hour or more with two or more migraine features | Trigger identification; migraine-style abortive treatment; prophylaxis if frequent or disabling |
| Criteria not met — episodes too short or too frequent | Pattern does not fit | Episodes under an hour, or occurring more often than every few weeks | Consider functional dyspepsia, IBS or functional abdominal pain NOS |
| Criteria not met — fewer than two associated features | Insufficient associated features | Pain fits the pattern but lacks two of anorexia, nausea, vomiting, headache, photophobia or pallor | Ask specifically about pallor and photophobia, which are under-reported; reassess after a symptom diary |
| Criteria not met — episodes not stereotypical | Red flag | Episodes differ in character, site or duration | Consider intermittent obstruction, malrotation with volvulus, urinary tract obstruction and metabolic disease |
What the Abdominal Migraine needs (7 inputs)
- Criteria fulfilled for at least 6 months, with episodes occurring at least twice
- Six months is the longest window in the Rome IV child and adolescent chapter, and the only one not shortened to two months. With attacks separated by weeks to months, a shorter window cannot capture the pattern.
- Paroxysmal episodes of intense acute periumbilical, midline or diffuse abdominal pain lasting 1 hour or more, and the most severe and distressing symptom
- One hour is the minimum. Rome IV also requires the pain to dominate — a child with several equally troublesome symptoms does not meet this criterion.
- Episodes separated by weeks to months
- Long symptom-free intervals. Daily or weekly pain is a different disorder entirely.
- The pain is incapacitating and interferes with normal activities
- The child stops what they are doing. Pain that can be worked through does not meet this criterion.
- Stereotypical pattern and symptoms in the individual patient
- The same episode every time. Families can usually describe it precisely, and that precision supports the diagnosis.
- Pain associated with two or more of: anorexia, nausea, vomiting, headache, photophobia, pallor
- Two of six. Pallor is the feature caregivers describe most strikingly and that is asked about least often.
- After appropriate evaluation, the symptoms cannot be fully explained by another medical condition
- Recurrent severe abdominal pain with vomiting also warrants consideration of intermittent obstruction and urinary tract obstruction.
What it returns
- Criteria met or not met
- All seven criteria are required.
- Which criteria are outstanding
- Reported when criteria are not met — most commonly the duration rule or the count of associated features.
How it is calculated
Abdominal migraine belongs to the family of paroxysmal disorders that includes migraine and cyclic vomiting syndrome, and shares their architecture rather than their site. The episodes are discrete, self-limiting, stereotypical, and separated by complete wellness — the same temporal shape as a migraine attack, with abdominal pain occupying the position that headache would ordinarily hold. The associated features are the giveaway: anorexia, nausea, vomiting, headache, photophobia and pallor are the accompaniments of migraine, and their presence around an abdominal pain episode is what places it in this family. Mechanistically the picture is incomplete, with the same candidates implicated as in migraine — cortical and brainstem excitability, trigeminovascular activation, and autonomic involvement producing the pallor and gastrointestinal features. Rome IV sensibly declines to adjudicate and defines the disorder by its pattern. That pattern is also why the diagnosis cannot be made from one attack: a single episode of severe abdominal pain with vomiting has a long differential, and only the repetition, the stereotypy and the intervening wellness make it recognisable.
Facts & figures
| Feature | Abdominal migraine | Cyclic vomiting | Functional dyspepsia |
|---|---|---|---|
| Dominant symptom | Abdominal pain | Vomiting and nausea | Upper abdominal discomfort |
| Episode duration | ≥ 1 hour | Hours to days | Not episodic in this sense |
| Interval between episodes | Weeks to months | Weeks to months | ≥ 4 times a month |
| Stereotypical | Required | Required | Not required |
| Duration rule | 6 months | 2 episodes within 6 months | 2 months |
| Migraine family history | Usually present | Usually present | Not characteristic |
| Prophylaxis | Migraine agents | Migraine agents | Not applicable |
Abdominal migraine and cyclic vomiting are the same kind of disorder differing in which symptom dominates, and children can move between the two phenotypes over time.
Evidence
Derivation — Rome Foundation, child/adolescent committee
2016Consensus criteria from the Rome IV committee on childhood functional gastrointestinal disorders in the child and adolescent age band, published in Gastroenterology in 2016.
Consensus-derived. The distinctive structural choice was to retain a six-month duration rule where the rest of the chapter uses two months, because episodes separated by weeks to months cannot be characterised in a shorter window.
Related consensus — NASPGHAN 2008
2008NASPGHAN consensus statement on cyclic vomiting syndrome, which covers the overlapping paroxysmal disorders and their shared management.
Sets out the trigger identification, abortive treatment and prophylaxis framework that abdominal migraine management follows, given the substantial overlap between the two disorders.
How it compares
Abdominal Migraine vs Paediatric cyclic vomiting syndrome
The same disorder family separated by which symptom dominates — pain or vomiting.
Both are stereotypical, paroxysmal, separated by weeks to months with complete recovery in between, both carry a strong migraine family history, and both are managed with migraine triggers, abortive treatment and prophylaxis. Rome IV separates them by the dominant symptom: abdominal migraine requires pain lasting an hour or more that is the most severe and distressing feature, while cyclic vomiting is defined by the vomiting. Children can shift between the two phenotypes over time, so the distinction matters less for prognosis than for how an acute attack is managed.
Abdominal Migraine vs Paediatric functional dyspepsia
Episodic and incapacitating with long well intervals, versus frequent and grumbling.
Functional dyspepsia requires symptoms at least four times a month over two months, with no requirement for episodes to be discrete, incapacitating or stereotypical. Abdominal migraine requires attacks separated by weeks to months that stop the child doing anything. A family describing 'attacks' rather than 'pain' — with a clear beginning, a clear end and normality in between — is usually describing abdominal migraine, and the treatment implications differ completely.
Abdominal Migraine vs Functional abdominal pain — not otherwise specified
The residual category that can only be used once abdominal migraine has been considered and excluded.
Functional abdominal pain NOS explicitly requires insufficient criteria for IBS, functional dyspepsia and abdominal migraine. Abdominal migraine therefore has to be actively considered before the residual label is applied, and the most common reason it is missed is that nobody asked about the associated features — a child with periodic severe pain and pallor who was never asked about pallor ends up in the residual category by default.
Pearls & pitfalls
- Ask about pallor. It is one of the six associated features, families describe it vividly, and it is almost never asked about.
- Ask about family history of migraine — it is present in most children and often makes the diagnosis obvious to the parent.
- Six months, not two. This is the one duration exception in the child and adolescent chapter.
- Complete wellness between attacks is essential; grumbling pain in between points elsewhere.
- The pain must be the most severe and distressing symptom, not one feature among several.
- Periumbilical, midline or diffuse — pain localised to a quadrant argues against the diagnosis.
- Non-stereotypical episodes are a red flag for intermittent obstruction, malrotation with volvulus and urinary tract obstruction.
- Episodes shorter than an hour do not meet criteria however severe they are.
- Many children develop typical headache migraine later; saying so in advance prevents it being experienced as a new illness.
- A trigger diary is more useful here than in most functional disorders, because the episodes are discrete enough to correlate.
Critical actions
- Take a detailed history of at least two episodes, establishing whether they were identical in onset, site, duration and associated symptoms.
- Ask specifically about each of the six associated features, including photophobia and pallor.
- Confirm complete wellness between episodes.
- Take a family history of migraine.
- Exclude intermittent obstruction, malrotation with volvulus and urinary tract obstruction where episodes involve vomiting or are not fully stereotypical.
- Consider metabolic causes where episodes are triggered by fasting or intercurrent illness.
- Start a trigger diary covering sleep, meals, travel and stress.
- Provide a plan for treating individual attacks early, as for migraine.
- Consider prophylaxis where episodes are frequent or disabling, and review it at intervals.
Why this score exists
Keeping the six-month rule in a chapter that shortened everything else to two months is the most revealing decision in these criteria. The paediatric committee's general principle was that long qualifying periods harm children — a child missing school should not have to accumulate half a year of symptoms before anyone will name the problem. They applied that principle everywhere except here, and the exception is not inconsistency. Abdominal migraine is defined by episodes separated by weeks to months, which means a two-month window might contain one attack, or two, and could not possibly establish whether they were stereotypical. Shortening the rule would have made the criteria unusable rather than more accessible. It is a useful reminder that duration thresholds in diagnostic criteria are doing different jobs in different disorders: sometimes they filter out transient illness, and sometimes, as here, they are simply the minimum time required for the pattern that defines the disease to become visible at all.
About the creator
First author, Rome IV child/adolescent functional gastrointestinal disorders committee
Chaired the committee that produced the child and adolescent criteria, including H2c.
Co-author; paediatric functional gastrointestinal disorders
Contributed epidemiological work on the paediatric abdominal pain disorders.
Co-author; paediatric neurogastroenterology and motility
Co-authored the child and adolescent chapter of Rome IV.
Limitations
- Consensus criteria with no validation cohort and no measured discrimination against organic causes of episodic pain.
- Requires a retrospective account of at least two episodes over six months, which delays diagnosis substantially.
- 'Stereotypical' and 'incapacitating' are judged rather than defined, and depend heavily on the quality of the history.
- The one-hour minimum is a convention, and families rarely time attacks precisely.
- The six-month rule means a child with two typical attacks in three months cannot yet be diagnosed, however characteristic they are.
- The associated features are under-reported unless asked about individually, so the two-of-six threshold is sensitive to how the history is taken.
- The criteria give no guidance on when imaging is required to exclude intermittent obstruction.
- No severity or frequency grading, so nothing in the criteria indicates when prophylaxis is warranted.
If you are the patient
Abdominal migraine is migraine that affects the tummy rather than the head. Children get attacks of severe pain around the belly button lasting an hour or more — often much longer — which stop them doing anything at all, and then they are completely well again for weeks or months until the next one. The attacks tend to be almost identical each time, and most families can describe them in detail. Alongside the pain there are usually migraine-type features: going off food, feeling or being sick, a headache, dislike of bright light, and very often going noticeably pale or grey. That pallor is worth mentioning to the doctor, because it is a useful clue and it is one people rarely think to report. Most children with this have a parent or close relative who gets migraines, and quite a few go on to develop ordinary migraine headaches as they get older — that is expected rather than a sign of anything new going wrong. Because it is a migraine, it responds to migraine approaches. The same triggers apply: not enough sleep, irregular sleep, missing meals, long journeys, excitement and stress. Keeping a simple diary of what preceded each attack is genuinely useful here, because the attacks are far enough apart to spot patterns. Attacks are treated early, in a quiet dark room, with medicine for pain and sickness. If they are happening often enough to interfere with school and family life, there are preventive medicines — the same ones used for migraine headaches — that can reduce how often they come.
Frequently asked questions
What are the Rome IV criteria for abdominal migraine?#
Over at least six months and occurring at least twice: paroxysmal episodes of intense periumbilical, midline or diffuse abdominal pain lasting an hour or more and being the most severe and distressing symptom; episodes separated by weeks to months; pain incapacitating and interfering with normal activities; a stereotypical pattern; two or more of anorexia, nausea, vomiting, headache, photophobia or pallor; and exclusion of other conditions.
Why is the duration rule six months when the rest of the chapter uses two?#
Because the disorder is defined by episodes separated by weeks to months. A two-month window might contain a single attack and could not establish whether attacks were stereotypical. Shortening the rule would have made the criteria unusable rather than more accessible, so the committee kept the exception.
Is abdominal migraine actually migraine?#
It behaves as one. The temporal architecture is identical, the associated features are migraine's features, most affected children have a family history of migraine, many develop typical headache migraine later, and the same triggers and the same prophylactic agents apply. Rome IV classifies it as a functional gastrointestinal disorder, but clinically it belongs to the migraine family.
What is the most under-asked diagnostic feature?#
Pallor. Caregivers describe a child going white or grey during an attack in vivid terms once prompted, but rarely volunteer it, because it does not seem like a gastrointestinal symptom. Photophobia is similarly under-reported. Since two of the six associated features are required, how the history is taken determines whether the criteria are met.
What distinguishes it from cyclic vomiting syndrome?#
Which symptom dominates. Abdominal migraine requires pain lasting an hour or more that is the most severe and distressing feature; cyclic vomiting is defined by the vomiting. Everything else — stereotypy, long well intervals, migraine family history, triggers and treatment — is shared, and children can move between the two phenotypes over time.
What red flags argue against the diagnosis?#
Episodes that are not stereotypical, pain localised to one quadrant rather than periumbilical or diffuse, failure to return to normal between attacks, bilious vomiting, and episodes reliably triggered by fasting or intercurrent illness. These raise intermittent obstruction — particularly malrotation with volvulus — urinary tract obstruction, and metabolic disease, all of which can produce strikingly episodic pain.
How is it treated?#
As migraine. Identify and modify triggers, which overlap with headache migraine and are often modifiable — irregular sleep and missed meals are the commonest. Treat individual attacks early with a quiet dark environment, analgesia and antiemetics. Where attacks are frequent or disabling enough to interfere with school and family life, migraine prophylaxis is appropriate.
Will my child grow out of it?#
The abdominal attacks usually become less frequent through adolescence. However, a substantial proportion of children go on to develop typical headache migraine, so it is more accurate to say the presentation changes than that it disappears. Saying this in advance is worthwhile, because it stops the later headaches being experienced as a new and unexplained illness.