Rome V Survey Updates the Global Picture

What Did the Rome V Global Survey Examine?

Disorders of gut–brain interaction, or DGBIs, include irritable bowel syndrome, functional dyspepsia, functional constipation and other persistent digestive syndromes defined by characteristic symptom patterns. The Rome V study evaluates these conditions across populations while testing how well the updated diagnostic framework performs.

The comparison with Rome IV is important because changing symptom thresholds, duration requirements or diagnostic groupings can alter prevalence estimates even when population health has not changed. Researchers must therefore distinguish genuine epidemiological differences from changes created by the classification system itself.

How Common Are Disorders of Gut–Brain Interaction?

The Rome Foundation's previous global study included 73,076 adults in 33 countries. Using Rome IV criteria, more than 40% of participants completing internet surveys met criteria for at least one DGBI, while estimates were lower in countries using household interviews. That difference demonstrated how recruitment and data-collection methods can influence reported prevalence.

DGBIs can involve abdominal pain, bloating, nausea, altered bowel habits and early fullness. Their burden extends beyond digestive symptoms: established research links them with impaired quality of life, greater healthcare use and frequent overlap with anxiety, depression, migraine and other chronic conditions. These associations do not mean that symptoms are imagined; they reflect interactions among intestinal function, the nervous system, immune signaling, microbiota and psychological health.

What Could Rome V Mean for Patients and Clinicians?

Standardized criteria give clinicians and researchers a shared vocabulary for recognizing symptom patterns and comparing studies. Updated epidemiological data can also help health systems estimate demand for gastroenterology care, dietary support, psychological therapies and primary-care management.

Rome criteria are not a substitute for clinical judgment. New gastrointestinal bleeding, unexplained weight loss, anemia, persistent vomiting, fever, a palpable mass or symptoms beginning later in life may require investigation for structural disease. Treatment should be tailored to the diagnosed condition and may include dietary measures, medicines, behavioral therapies and management of overlapping health problems.