When most people hear the word "migraine," they think of a severe headache. But for thousands of children — and some adults — the defining feature of their migraine isn't head pain at all. It's intense, recurring abdominal pain, nausea, and vomiting that can last for hours and then disappear completely.
This is abdominal migraine: a recognised migraine variant classified by the International Headache Society in the ICHD-3, and one of the most commonly missed diagnoses in paediatric gastroenterology.
What Is Abdominal Migraine?
Abdominal migraine is an episodic condition characterised by recurrent attacks of moderate to severe midline abdominal pain, usually accompanied by nausea, vomiting, and loss of appetite. The headache that typifies adult migraine is often absent or minor.
It is primarily a childhood condition, affecting approximately 1–4% of children, with peak incidence between ages 3 and 10. The majority of children with abdominal migraine go on to develop typical migraine headaches in adolescence or adulthood, strongly supporting its classification as part of the migraine spectrum.
Abdominal migraine also occurs in adults, though it is less commonly diagnosed in this age group — partly because clinicians are less aware of it as an adult diagnosis, and partly because most adults with migraine spectrum disorders present with headache rather than abdominal symptoms.
Abdominal Migraine Symptoms
Core diagnostic features (all required):
- Abdominal pain — moderate to severe, dull or poorly localised, typically in the midline or periumbilical region (around the navel)
- Duration — 2 to 72 hours (untreated or unsuccessfully treated)
- Full recovery between episodes — complete return to normal between attacks
- Accompanied by at least two of: anorexia, nausea, vomiting, pallor
What abdominal migraine typically looks like in a child: A child wakes up with a stomachache in the middle of the night, or becomes pale and nauseated during the day. The pain is in the middle of the abdomen, not lower (ruling out appendicitis) and not associated with a change in bowel habits (ruling out many GI disorders). The child may vomit and look pale, then want to sleep. A few hours later — or the next morning — they're completely fine. The same pattern repeats every few weeks or months.
How Abdominal Migraine Differs from Other Causes of Recurrent Stomach Pain
Abdominal migraine is frequently confused with:
Cyclic Vomiting Syndrome (CVS): CVS and abdominal migraine overlap significantly and may be part of the same spectrum. CVS involves stereotyped episodes of severe vomiting (often 6+ per hour), while abdominal migraine is dominated by pain with less severe vomiting. Both are considered migraine equivalents.
Functional Abdominal Pain / IBS: Functional abdominal pain tends to be more chronic and daily, associated with bowel habit changes, and doesn't resolve completely between episodes. Abdominal migraine is episodic with full recovery.
Appendicitis, intussusception, surgical causes: The midline/periumbilical location of abdominal migraine pain (rather than right lower quadrant) and the pattern of complete recovery between episodes are key distinguishing features.
Triggers for Abdominal Migraine
Abdominal migraine shares triggers with other migraine variants. Common ones include:
- Stress and anxiety — both psychological stress and the "let-down" after exams or excitement
- Sleep disruption — overtiredness is a particularly common trigger in children
- Dietary factors — skipped meals, chocolate, citrus, MSG, nitrates
- Travel and motion — car journeys frequently trigger episodes
- Hormonal changes — in adolescent girls, episodes may correlate with the menstrual cycle
- Weather changes — barometric pressure sensitivity is reported
Identifying an individual's specific triggers through consistent logging is a cornerstone of management — particularly in children, where avoiding triggers can significantly reduce episode frequency.
Diagnosis
There is no diagnostic test for abdominal migraine. Diagnosis requires:
- A clinical history meeting ICHD-3 criteria (recurrent episodes of midline abdominal pain, 2–72 hours, with full recovery between attacks)
- At least 5 attacks fitting the criteria
- Exclusion of other gastrointestinal diagnoses through appropriate investigation
Most children with suspected abdominal migraine will have basic investigations (blood tests, urine, abdominal ultrasound) to exclude other causes before the diagnosis is confirmed. A family history of migraine strongly supports the diagnosis.
A symptom diary tracking each episode — timing, duration, location and severity of pain, associated symptoms, potential triggers, and recovery — is one of the most valuable tools for both diagnosis and ongoing management.
Treatment
Acute treatment:
- For mild-to-moderate episodes: ibuprofen or paracetamol/acetaminophen, rest in a quiet dark environment, and oral fluids if tolerated
- For severe episodes: in a clinical setting, IV fluids, antiemetics (ondansetron, prochlorperazine), and IV triptans or NSAIDs may be used
- Sumatriptan nasal spray is licensed for children over 12 and is effective for aborting attacks in older children
Preventive treatment: For children with frequent or severe abdominal migraine (more than 2 episodes/month, or episodes lasting more than 12 hours), preventive therapy is recommended:
- Pizotifen — first-line in many paediatric guidelines; antihistamine/antiserotonergic
- Propranolol (beta-blocker) — evidence base from adult migraine extrapolated to children
- Cyproheptadine — particularly for younger children
- Topiramate — used in older children and adolescents
For adult abdominal migraine, treatment follows standard migraine management principles, including triptans, NSAIDs, and appropriate preventive therapy.
Lifestyle: Regular meals and sleep, stress management, and trigger avoidance are particularly important in children. Many families find that consistent routines dramatically reduce episode frequency.
Outlook
Most children with abdominal migraine see improvement as they get older. Many transition to typical migraine headaches in adolescence, which — while still challenging — are at least more easily recognised and managed. A minority continue to have abdominal episodes into adulthood.
Tracking episodes with Migraine Trail helps establish the episodic pattern, identify triggers, and build the longitudinal record that supports diagnosis and guides treatment decisions — whether for a child or an adult with this often-overlooked migraine variant.