Green stool — when your feces look green — is usually the result of something you ate, such as spinach or dyes in some foods. Certain medicines or iron supplements also can cause green stool.
Newborns pass a dark green stool called meconium, and breastfed infants often produce yellow-green stools. In older children and adults, green stool is not common. However, it's rarely cause for concern.
Infants might have green stool as a result of:
Causes of green stool include:
Call a healthcare professional if you or your child has green stool for more than a few days. Green stool often happens with diarrhea, so drink plenty of fluids and seek immediate medical attention if you or your child becomes dehydrated.
