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 stool type1 Separate hard lumps like nuts (difficult to pass)
Type 2  stool type2 Sausage shaped but lumpy
Type 3 stool type3  Like a sausage but with cracks on surface
Type 4  stool type4 Like a sausage or snake, smooth and soft
Type 5  stool type5 Soft blobs with clear-cut edges (passed easily)
Type 6  stool type6 Fluffy pieces with ragged edges, a mushy stool
Type 7  stool type7 Watery, no solid pieces (entirely liquid)



We provide a wide range of topics and tools dedicated to providing information about chronic disorders of the digestive tract and how improve living with these conditions.

Publication Library

Stool Form Guide

Medical Definitions