Bristol stool scale
Bristol Stool Scale

The Bristol Stool Scale is a medical tool designed to classify the form of human feces into seven categories. It is used in both clinical and research settings to help diagnose and monitor gastrointestinal conditions. The scale was developed at the University of Bristol and first published in the Scandinavian Journal of Gastroenterology in 1997.
Description
The Bristol Stool Scale categorizes stool into seven types based on shape and consistency:
- Type 1: Separate hard lumps, like nuts (hard to pass)
- Type 2: Sausage-shaped but lumpy
- Type 3: Like a sausage but with cracks on its surface
- Type 4: Like a sausage or snake, smooth and soft
- Type 5: Soft blobs with clear-cut edges (passed easily)
- Type 6: Fluffy pieces with ragged edges, a mushy stool
- Type 7: Watery, no solid pieces, entirely liquid
Each type is associated with different transit times through the colon, with Type 1 indicating slow transit and Type 7 indicating rapid transit.
Clinical Use
The Bristol Stool Scale is a useful tool for diagnosing and managing conditions such as irritable bowel syndrome (IBS), constipation, and diarrhea. It helps healthcare providers assess the effectiveness of treatments and dietary changes. Patients can use the scale to communicate more effectively with their healthcare providers about their bowel habits.
Related Conditions
- Constipation: Often associated with Type 1 and Type 2 stools.
- Diarrhea: Typically associated with Type 6 and Type 7 stools.
- Irritable Bowel Syndrome: Patients may experience a range of stool types, often fluctuating between constipation and diarrhea.
Related Pages
| Health science - Medicine - Gastroenterology - edit |
|---|
| Diseases of the esophagus - stomach |
| Halitosis | Nausea | Vomiting | GERD | Achalasia | Esophageal cancer | Esophageal varices | Peptic ulcer | Abdominal pain | Stomach cancer | Functional dyspepsia | Gastroparesis |
| Diseases of the liver - pancreas - gallbladder - biliary tree |
| Hepatitis | Cirrhosis | NASH | PBC | PSC | Budd-Chiari | Hepatocellular carcinoma | Acute pancreatitis | Chronic pancreatitis | Pancreatic cancer | Gallstones | Cholecystitis |
| Diseases of the small intestine |
| Peptic ulcer | Intussusception | Malabsorption (e.g. Coeliac, lactose intolerance, fructose malabsorption, Whipple's) | Lymphoma |
| Diseases of the colon |
| Diarrhea | Appendicitis | Diverticulitis | Diverticulosis | IBD (Crohn's, Ulcerative colitis) | IBS | Constipation | Colorectal cancer | Hirschsprung's | Pseudomembranous colitis |
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