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Definition
By Mayo Clinic staffGreen stool — when your feces look green — is usually caused by something you ate. Food dyes and green vegetables, such as spinach, are common causes of green stool. Green stool also can occur after you consume certain medications or iron supplements.
Newborns pass a dark green stool called meconium and breast-fed infants often produce yellow-green stools. In older children and adults, green stool can be a sign of an intestinal infection or condition. While most of these problems are minor, repeated incidents of green stool may require medical attention.
- Fischbach FT, et al. Stool analysis. In: A Manual of Laboratory and Diagnostic Tests. 8th ed. Philadelphia, Pa.: Walters Kluwer Health, Lippincott Williams & Wilkins; 2009:293.
- Bluth MH, et al. Laboratory diagnosis of gastrointestinal and pancreatic disorders: Macroscopic examination of feces. In: McPherson RA, et al. Henry's Clinical Diagnosis and Management by Laboratory Methods. 21st ed. Philadelphia, Pa.: Saunders Elsevier; 2006. http://www.mdconsult.com/. Accessed Dec. 16, 2009.
- Meconium aspiration syndrome. The Merck Manuals: Home Edition for Patients and Caregivers. http://www.merck.com/mmhe/sec23/ch264/ch264i.html. Accessed Dec. 16, 2009.
- Estripeaut D, et al. Perinatal bacterial diseases: Clinical manifestations. In: Feigin RD, et al. Feigin and Cherry's Textbook of Pediatric Infectious Diseases. 6th ed. Philadelphia, Pa.: Saunders Elsevier; 2009. http://www.mdconsult.com/. Accessed Dec. 16, 2009.
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