Is passing a pale, greenish stool a cause for concern?
I had a small, pale, greenish hard (rock) stool among other dark brown stool yesterday. Is it a cause for concern?
Hi Alex, thank you for getting in touch with us.
Stools are an extremely interesting subject. We usually use the Bristols stool chart to figure out what your type of stool is.
Stools can have many colours, but the main ones that doctors are really concerned about are black, tarry stools (which will prompt us to rule out a possible cancer).
The most common causes of abnormally coloured stools are due to:
- An underlying medical condition
- A recent medical procedure
- A bacterial infection
Stool is usually brown in colour due to a mix of dead red blood cells and waste from the bacteria in your bowels. Besides making your poop brown, the bacteria also helps you to absorb nutrients from your meals.
If you experience green stool as a one-off, it’s highly unlikely to be a cause for concern. Long-lasting bouts of unusually coloured stool, on the other hand, may signal something more serious.
You could try to take a picture of these unusually coloured stools the next time it happens, and show it to your GP on your next visit. Take care.