Stool Form Guide
Bristol Stool Form Scale
Developed at the University of Bristol, U.K., the Bristol stool form scale is a recognized, general measure of stool consistency or form. Using this scale, you can help your physician sort out patterns or changes in bowel habit. Remember, this is intended as a general, not exact, measure. Use this guide to complete your diary and worksheet, and share the information with your physician.
| Type 1 |  |
Separate hard lumps like nuts (difficult to pass) |
|---|---|---|
| Type 2 |  |
Sausage shaped but lumpy |
| Type 3 |  |
Like a sausage but with cracks on surface |
| Type 4 |  |
Like a sausage or snake, smooth and soft |
| Type 5 |  |
Soft blobs with clear-cut edges (passed easily) |
| Type 6 |  |
Fluffy pieces with ragged edges, a mushy stool |
| Type 7 |  |
Watery, no solid pieces (entirely liquid) |
Last modified on August 1, 2007 at 09:37:20 AM