Gut-brain disorders found in three-quarters of children with chronic abdominal pain

New research highlights the role of gut-brain interaction and psychological strain in persistent abdominal pain, while warning that organic disease must still be ruled out.

Frequent abdominal pain in children is increasingly being recognised as more than a vague or isolated complaint. Recent research suggests that, in many cases, the problem sits within disorders of gut-brain interaction, a group of conditions in which the digestive system and nervous system appear to interact in ways that trigger recurring symptoms. A 2026 study in the Journal of Paediatric Gastroenterology and Nutrition found that three-quarters of 120 children with chronic abdominal pain met criteria for such a disorder, with functional dyspepsia the most common diagnosis.

That finding adds weight to a broader shift in paediatric care: doctors are looking beyond the stomach itself and considering whether pain may be linked to how the gut and brain process signals. The same study also found that a small but notable share of children met adult Rome IV criteria for biliary pain, underscoring how different gut-brain disorders can overlap in younger patients.

Psychological strain is also emerging as an important part of the picture. A systematic review published in August in Gastroenterology Research concluded that stress and anxiety can contribute to both the onset and persistence of chronic functional abdominal pain in children. That does not mean the pain is imaginary; rather, it suggests that emotional wellbeing can shape how symptoms develop and how long they last.

Not all abdominal pain in children is functional, however. An August study in BMC Gastroenterology, which examined children admitted to a gastroenterology unit, found that chronic gastritis was the most common diagnosis, followed by acute gastroenteritis and Henoch-Schönlein purpura. The study noted that acute pain was most often centred around the navel, with vomiting the most frequent accompanying symptom, a reminder that clinicians still need to rule out organic disease before settling on a functional explanation.

A review published in January said careful diagnosis matters because it can prevent unnecessary tests and help ease parental anxiety. That message was echoed in an October review in Current Opinion in Paediatrics, which described paediatric abdominal pain-related gut-brain disorders as complex conditions that need a broad approach, taking account of both physical and psychological factors. Even as probiotics are being explored as a treatment, a July systematic review in the European Journal of Paediatrics found their real-world benefit remains uncertain, indicating that families and clinicians still lack a simple fix.