Bristol stool form scale

Gastroenterology and hepatology

Also known as: Bristol stool chart · Bristol-Stuhlformen-Skala · Bristol dışkı skalası

What it is for

Seven-type picture scale of stool form, used as a guide to intestinal transit time and to describe bowel habit (e.g. for subtyping irritable bowel syndrome).

Classification

CategoryDescription
Type 1separate hard lumps, like nuts
Type 2sausage-shaped but lumpy
Type 3like a sausage but with cracks on the surface
Type 4like a sausage or snake, smooth and soft
Type 5soft blobs with clear-cut edges
Type 6fluffy pieces with ragged edges, a mushy stool
Type 7watery, no solid pieces
Usetypes 1–2 are hard or lumpy stools and types 6–7 mushy or watery stools in the Rome subtyping of irritable bowel syndrome

Source

Stool form scale as a useful guide to intestinal transit time

Scand J Gastroenterol 1997;32:920–924 (Lewis SJ, Heaton KW)

DOI: 10.3109/00365529709011203

PMID: 9299672

Edition
Bristol stool form scale (Lewis and Heaton 1997), in current use
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