DefinitionBy Mayo Clinic Staff
Green stool — when your feces look green — is usually the result of something you ate, such as spinach. Certain medications or iron supplements can also cause green stool.
Newborns pass a dark green stool called meconium, and breast-fed infants often produce yellow-green stools. In older children and adults, green stool is uncommon. It's rarely cause for concern.
Sept. 19, 2015
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