Gastroenterology · Primary Care

Rome IV Functional Abdominal Bloating and Distension calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Recurrent bloating or distension that predominates over painInsufficient criteria for IBS, functional constipation, functional diarrhea, or opioid-induced constipation

Months since symptom onset

months

Allowed range: 0–240 months

Months in the past year during which criteria were met

months

Allowed range: 0–12 months

Result

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Clinical inputs

Recurrent bloating or distension that predominates over pain
Insufficient criteria for IBS, functional constipation, functional diarrhea, or opioid-induced constipation
Months since symptom onsetAccepted range: 0 to 240
Months in the past year during which criteria were metAccepted range: 0 to 12

Primary source

Lacy BE et al. Bowel disorders. Gastroenterology. PMID: 27144627. Recurrent bloating or distension, or both, predominant over pain, with insufficient criteria for IBS, functional constipation, functional diarrhea, or opioid-induced constipation; onset at least 6 months earlier and criteria met for 3 months. (2016)

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