The Bristol Stool Chart Explained

The Bristol Stool Chart Explained

The Bristol Stool Chart is one of the easiest tools for understanding poop health. It was created by researchers to help categorize stool shape and consistency, which tells us a lot about what is happening in the gut. It is simple, accurate, and useful for both kids and adults.

In my GI practice, I use this chart every day because it helps families understand constipation, diarrhea, and everything in between. Here is a simple explanation of each type and what it means for your gut health.

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Type 1: Hard, Separate Pebbles

This type means stool has stayed in the colon for too long. Too much water has been absorbed, which makes the stool dry and painful to pass.

Common signs:

• Withholding
• Fear of pooping
• Belly pain
• Skipped bowel movements

This is a clear sign of constipation.

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Type 2: Lumpy and Log Shaped

This is also constipation, but slightly softer than Type 1. It often means the stool is moving slowly and the colon is struggling to pass it.

Kids with Type 2 stool may:

• Strain
• Avoid the toilet
• Pass very large stools

This type often needs more hydration and fiber.

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Type 3: Log With Cracks

This is almost normal but still shows mild dehydration or slow movement. Many people with mild constipation pass this type regularly.

To improve it:

• Add hydration
• Increase daily movement
• Add a small amount of fiber

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Type 4: Smooth, Soft, and Easy To Pass

This is the goal.
Soft, formed stool that does not hurt to pass. This type means the gut has the right balance of fiber, hydration, and movement.

Kids and adults with Type 4 stools are usually pooping comfortably and regularly.

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Type 5: Soft Blobs, Easy To Pass

This type is still normal for many children, especially younger ones. It often means the gut is moving quickly and hydration is good.

If this type appears often in adults, it can suggest more stool movement than usual, but it is not necessarily unhealthy.

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Type 6: Mushy Stool With Ragged Edges

This type indicates loose stool and faster transit through the colon. It can happen with:

• Mild stomach upset
• Food sensitivities
• Illness
• High sugar intake
• Stress

If it happens often, it may need evaluation.

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Type 7: Liquid Stool

This is diarrhea. Stool passes through the colon too quickly for water to be absorbed. It can happen with infections, food poisoning, allergies, or certain medications.

If it continues beyond a few days, or if there is blood or dehydration, talk with a provider.

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How To Use the Bristol Stool Chart at Home

The chart helps you track stool patterns and understand what the gut needs.

Use it to:

• Identify constipation early
• Track progress with treatment
• Help kids understand poop in a safe, simple way
• Guide food and hydration changes

Many parents use the chart on the fridge, in the bathroom, or on a routine chart for kids.

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How To Improve Stool Types 1 to 3

Most constipation shows up as Type 1, 2, or 3.
To improve these types:

• Increase hydration
• Add gut friendly foods
• Create a daily poop routine
• Use the right toilet position
• Talk with a provider if needed

Small daily habits can make a big difference.

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When To Talk With a Provider

Seek help if you or your child:

• Have frequent Type 1 or 2 stool
• Have painful or large stools
• Withhold or avoid the toilet
• Have stool accidents
• Have ongoing diarrhea
• Have blood in the stool

A GI provider can help create a safe and effective plan.

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Understanding the Chart Helps You Understand Your Gut

The Bristol Stool Chart is a simple tool that gives you clear insight into what is happening in the digestive system. Once you know your type, you can make small changes to support better poops and more comfortable bathroom routines.

You are doing a great job.

Check out our 7 Day Gut Reset Guide on our Stan Store!:

Kindly,
Renee, GI Nurse Practitioner