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One poop is a guess. Two weeks is a record.

18 October 2026 · 3 min read

A monthly planner open on a desk with a marker pen
Photo: Estée Janssens on Unsplash

Everyone has an odd day. A big meal, a late night or a stressful week can change what ends up in the toilet. One poop on its own says very little.

What helps your doctor is the pattern: how often, what shape, and what else was going on.

What a single day misses

Say you log a type 6 on Tuesday. Cleveland Clinic says types 5, 6 and 7 suggest diarrhea (Cleveland Clinic). But was Tuesday a one-off, or the fifth time this week? Did it follow a bad night’s sleep? You can’t tell from one entry.

What two weeks can show

These are things a doctor can work with. They are also easier to say out loud when they are written down.

A pattern is not a cause

If loose days often follow a certain food in your log, that is worth mentioning. It doesn’t prove the food caused it. Bring it to your doctor or dietitian and decide together what to do next.

When not to wait

Some things shouldn’t wait for two weeks of notes. If you are bleeding from your bottom, have bloody diarrhoea or have lost a lot of weight for no reason, the NHS says to ask for an urgent GP appointment or get help from NHS 111 (NHS).

Start small

Log the type and the time. That is enough to start. The printable diary or the Gutsby app (join the waitlist) can do the rest.

Log it in one tap. Bring one clear page.

The Gutsby app is on its way. Get one email when it is ready.

This article is general information, not medical advice. Talk to your doctor about your own symptoms.

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