Quick Scoop

Here’s a simple guide to the main types of poop and what it means, based on the Bristol Stool Chart and related medical guidance. In general, Types 3 and 4 are considered the most normal, while Types 1–2 suggest constipation and Types 6–7 suggest diarrhea or faster- than-usual gut transit.

[2][10] [10] [10] [10] [2][10] [9][10] [2][10] [2][10]

Type	What it looks like	What it may mean
1	Separate hard lumps, like nuts	Constipation, stool stayed too long in the colon
2	Sausage-shaped but lumpy	Constipation, often still dry and hard to pass
3	Like a sausage with cracks	Usually normal, sometimes mild constipation
4	Smooth, soft sausage or snake	Most often considered ideal/healthy stool
5	Soft blobs with clear edges	Slightly loose; can be normal, especially with frequent bowel movements
6	Fluffy pieces with ragged edges	Diarrhea or early diarrhea
7	Watery, no solid pieces	Severe diarrhea, often needs attention if ongoing

Color clues

Brown is usually the normal color for stool, because of bile pigments processed through digestion. Green stool can happen when food moves through the gut quickly or after certain foods, supplements, or medications.

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Black stool can sometimes come from iron or bismuth medicines, but it can also signal bleeding higher in the digestive tract. Pale, gray, or clay-colored stool may point to a bile-flow problem, and yellow stool can suggest fat malabsorption or another digestive issue.

[9]

When to get help

Most stool changes are short-lived and tied to diet, stress, or a stomach bug, but persistent changes are worth checking. Contact a clinician if you see blood, black stool without an obvious medicine cause, pale stool lasting more than a couple of days, or ongoing diarrhea or constipation.

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Easy rule

A useful shorthand is: hard and lumpy often means constipation; smooth and formed is usually healthy; mushy or watery often means diarrhea. If you want, I can also turn this into a simple “poop chart” graphic or a kid-friendly version.[10][2]