The new frontiers of Rome V: the latest standalone diagnoses

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The new frontiers of Rome V: the latest standalone diagnoses

Author: Dr. Bahir Hadi, Consultant Surgeon, PhD · Date: June 2026

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Abstract

Science never stands still, and neither does our understanding of the human body. With the Rome V framework, the global gastroenterology community has not just tweaked old definitions - it has officially validated several newly recognised conditions as independent Disorders of Gut-Brain Interaction (DGBIs) [1]. For thousands of patients who previously lacked a clear medical name for their suffering, these additions represent a monumental turning point [1, 2].

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1. Inability to Belch Syndrome (Retrograde Cricopharyngeal Dysfunction - RCPD)

For years, people who complained that they literally "could not burp" were met with puzzled looks. RCPD is now recognised as a distinct, highly uncomfortable neuromuscular disorder [2].

Normally, when gas builds up in the stomach and travels up the oesophagus, a muscular valve at the top of the throat - the cricopharyngeus muscle - relaxes to let the gas escape as a burp. In RCPD this muscle refuses to relax in the retrograde direction. The result is trapped gas, severe gurgling noises in the throat, painful chest bloating and excessive flatulence [2].

The medical breakthrough: because it is now a recognised disorder, targeted treatments - such as injecting botulinum toxin (Botox) directly into the stubborn throat muscle to temporarily relax it - are becoming accepted clinical standards [2].

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2. Adult abdominal migraine

Paediatric abdominal migraine has been recognised for a long time, but historically the medical community assumed children simply "grew out of it" as they developed classic headache migraines in adulthood. Rome V shatters this myth by officially classifying adult abdominal migraine [1, 2].

Patients experience sudden, intense episodes of deep abdominal pain, often accompanied by severe nausea, vomiting, headache or acute light sensitivity. Crucially, there is no structural issue in the abdomen. The gut pain is essentially a migraine occurring inside the enteric nervous system of the belly [2].

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3. Anorectal sensory dysfunction

We know a hypersensitive gut can cause pain. Rome V has now formally isolated its opposite twin: anorectal sensory dysfunction. Here the sensory nerves in the rectum are hyposensitive - they lack normal feeling [2].

Because the nerves fail to register when the rectum is full, the brain never receives the signal that it is time to find a restroom. This leads to severe stool impaction, chronic stretching of the bowel wall and paradoxical overflow leakage, often without the patient realising it is happening [2].

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Why these additions matter

By giving these precise symptom clusters their own official diagnoses, the Rome Foundation ensures patients can secure targeted, effective therapies right away - rather than spending years undergoing repetitive diagnostic testing for conditions they do not have [1, 2].

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We investigate oesophageal, gastric, intestinal and anorectal symptoms with gastroscopy, colonoscopy, functional work-up and referral to relevant specialists. Read the full DGBI series: Oesophageal DGBIs, Gastroduodenal DGBIs, Bowel DGBIs, Centrally mediated pain, Gallbladder & Oddi disorders, Anorectal DGBIs.

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References

1. Rome Foundation. Rome V Diagnostic Criteria for Disorders of Gut-Brain Interaction. Drossman DA, Tack J, Chang L et al. (eds.), 2026 update. International consensus document formally recognising RCPD, adult abdominal migraine and anorectal sensory dysfunction as standalone DGBI diagnoses.
2. Bastian RW et al. Retrograde Cricopharyngeus Dysfunction (R-CPD): definition, diagnosis and botulinum-toxin treatment. Clinical literature on RCPD plus Rome V working-group consensus articles on the new DGBI diagnoses. Gastroenterology / Otolaryngology.