Bristol Stool Scale

Print this page print this page

By Dr. Edward F. Group III, DC, ND, DACBN
updated 10 months ago

Unlike the rest of the body, the bowels and our feces have never been popular subjects for research. Therefore, it’s not surprising that there is little scientific data available on these topics. However, constipation and diarrhea are two of the most common conditions affecting Americans today. In order for health care professionals to better diagnose these conditions, and others that affect the bowels and bowel movements, the Bristol Stool Scale was developed to classify stool shape, size, and consistency.

bristol stool scale

What Is The Bristol Stool Scale?

Developed by a team of Gastroenterologists at the University of Bristol, in the United Kingdom; the Bristol Stool Scale is a recognized, general measurement used in the health care profession to evaluate the consistency or form of stools. This scale is a medical tool designed to classify one's bowel movements into seven distinct categories. There is a direct correlation between the form of the stool and the amount of time it has spent in the colon. Therefore, the Bristol Stool Scale can be used to measure the consistency or form of a patient's stools, presenting your health care provider with more information for detecting patterns or changes in bowel habits. However, it’s important to remember that this scale is intended to provide a general, not exact, measurement of fecal form and consistency.


How Do I Use The Bristol Stool Scale?

The Bristol Stool Scale classifies feces into seven types, based on their appearance as seen in the toilet water. They are distinguished as follows:

Please Note: The following is Dr. Group's addition and not part of the original 7 categories of the Bristol Stool Scale.

Stools at the lower end of the scale are hard to pass and often require a lot of straining. In general, if you are constipated, you will be passing stools that are categorized as Type One or Two, and not very often at all. Those who are suffering from have diarrhea will be passing Type Six, Seven, or Eight stools on a very frequent basis. Stools at the loose or liquid end of the spectrum may pass through the system almost too easily, causing an urgency to defecate as well as potential “accidents.” The rule of thumb is that Types Three and Four stools that are passed once every three days qualifies as "normal." I personally disagree with this, as I believe that at the very least, one stool should be passed each day instead of every three days.

When Would I Need the Bristol Stool Scale?

You can use the Bristol Stool Scale at home to get a better idea of the types of stool you typically pass. This scale will also give you a better idea of any changes that may develop in your typical bowel habits. When changes do occur, it’s often a sign that your colon is not functioning properly. This is a good time to use a colon-cleansing supplement designed to remove toxins and fecal debris from the intestinal tract and restore the health of the colon. Oxy-Powder® is a highly recommended colon cleanser that flushes away encrusted fecal matter from both the large and small intestines. Oxy-Powder® uses an oxygen-based formula that also works to deliver oxygen and heal the tissues of the intestinal tract.

About the Author

Dr. Edward F. Group III continues to develop, sell and evaluate exclusively high-end natural and organic healthcare products to support a wide range of health conditions. The products he promotes are free of toxic tag-along herbicides, insecticides, pesticides, heavy metals, fumigants, irradiation, liver-toxic glues, binders, or gelatin capsules with animal-source risk and toxic preservatives.

Suggestion Box

Your comments can help make our site better for everyone. If you've found something incorrect, broken, or frustrating on this page, let us know so that we can improve it. Please note that we are unable to respond directly to suggestions made via this form.


Have a question? Ask an expert.