Manning Criteria (IBS)
Manning Criteria for IBS (Manning 1978): count six symptoms.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Pain linked to more frequent bowel movements
- Yes
- Looser stools with the onset of pain
- Yes
- Pain relieved by passage of stool
- Yes
Result: Manning 3 of 6 — IBS likely (>= 3, if no alarm features).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- >= 3
- Supports IBS, provided alarm features are absent (weight loss, bleeding, anemia, onset >50, etc.). More symptoms make IBS more likely.
What you enter
- Pain linked to more frequent bowel movements
- Looser stools with the onset of pain
- Pain relieved by passage of stool
- Noticeable abdominal bloating
- Incomplete evacuation >25% of the time
- Mucus with stool >25% of the time
How this is calculated
- Items
- pain with more frequent stools, looser stools with pain, pain relieved by defecation, bloating, incomplete evacuation >25%, mucus >25% = count 0-6.
Manning AP, Thompson WG, Heaton KW, Morris AF. Towards positive diagnosis of the irritable bowel. Br Med J. 1978;2(6138):653-654. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.