Retrieves the description and clinical interpretation for the Bristol Stool Form Scale (BSFS). This diagnostic medical tool classifies the form of human faeces into seven categories, which correlate with colonic transit time.
Numeric (1-7). The integer corresponding to the visual appearance of the stool.
1: Separate hard lumps (nuts).
2: Sausage-shaped but lumpy.
3: Sausage-shaped with cracks.
4: Sausage/snake, smooth and soft.
5: Soft blobs with clear-cut edges.
6: Fluffy pieces with ragged edges.
7: Watery, no solid pieces.
References
Lewis SJ, Heaton KW. Stool form scale as a useful guide to intestinal transit time. Scand J Gastroenterol. 1997;32(9):920-924. doi:10.3109/00365529709011203