Vaizey Score (St Marks Fecal Incontinence)
The Vaizey (St Marks) fecal incontinence score, the companion to the Wexner score.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Incontinence for solid stool
- 1
- Incontinence for liquid stool
- 3
- Incontinence for gas
- 4
- Alteration in lifestyle
- 1
- Need to wear a pad or plug
- Yes
- Taking constipating medicines
- No
- Lack of ability to defer defecation for 15 minutes
- Yes
Result: Vaizey score 15 of 24: 9 from the frequency rows plus 6 from the added rows.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Frequency rows
- Solid stool, liquid stool, gas, and lifestyle, each 0 (never) to 4 (daily).
- Added rows
- Pad or plug 2, constipating medicines 2, cannot defer 15 minutes 4.
- 0
- Perfect continence.
- 24
- Totally incontinent.
What you enter
- Incontinence for solid stool (0 never to 4 daily)
- Incontinence for liquid stool (0 never to 4 daily)
- Incontinence for gas (0 never to 4 daily)
- Alteration in lifestyle (0 never to 4 daily)
- Need to wear a pad or plug (2 points if yes)
- Taking constipating medicines (2 points if yes)
- Lack of ability to defer defecation for 15 minutes (4 points if yes)
How this is calculated
Vaizey CJ, Carapeti E, Cahill JA, Kamm MA. Prospective comparison of fecal incontinence grading systems. Gut. 1999;44(1):77-80. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.