Loading...
Printed on 4/21/2026
For informational purposes only. This is not medical advice.
The Bristol Stool Scale is a standardized 7-type visual stool form classification commonly used in gastroenterology and primary care. It helps describe bowel habit patterns consistently over time and supports communication between patients and clinicians.
Formula: Ordinal stool-form classification from Type 1 (hard) to Type 7 (watery).
Lower stool types suggest harder stool and slower transit; higher types indicate looser stool and faster transit.
Use this tool for bowel symptom tracking in constipation, IBS, diarrhea evaluation, and treatment follow-up conversations.
The Bristol scale describes form, not etiology. Diagnosis still requires broader history, alarm-feature screening, and targeted testing when needed.
For related assessments, see Rockall Score, AIMS65 and Water Intake.
Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.
Calculate the Rockall score to predict rebleeding and mortality in upper GI hemorrhage. Pre-endoscopy score ≤2: low risk for rebleeding. Post-endoscopy score 0: <5% rebleeding risk.
GastroenterologyEstimate in-hospital mortality risk in upper GI bleeding using the 5-item AIMS65 score.
NutritionCalculate recommended daily water intake based on body weight and activity level, with hydration targets in liters and cups.
NutritionCalculate recommended daily protein intake based on body weight, activity level, and fitness goals.