Validity and reliability of the Bristol Stool Form Scale in healthy adults and patients with diarrhoea‐predominant irritable bowel syndrome

Abstract

The BSFS demonstrated substantial validity and reliability, although difficulties arose around clinical decision points (Types 2, 3, 5, 6) that warrant investigation in larger clinical populations. Potential for improving validity and reliability through modifications to the BSFS or training in its use should be explored.