Poop can turn green for many reasons, such as a diet rich in high chlorophyll plants. Other possible causes include antibiotic use and bacterial infections. Poop is generally brown, but ...

Brightly colored baby poop (orange, green, or blue, for example) is sometimes a result of something your baby has eaten, such as orange carrots or sweet potatoes, or green spinach or peas ...

You expect your poop to be some shade of brown. That’s normal, as are some shades of green. When it looks unusually green, red, or even blue, the alcohol you drank could be the cause.