A member asked:

My stool for the past week has been green in color. i am sure it's not because any green color food. what could cause it. ? thanks.

8 doctors weighed in across 3 answers
Dr. Bradford Romans answered

Specializes in Internal Medicine

Undigested bile: can cause the green color.It may represent a rapid transit time for the stool.For instance,when one has diarrhea and the stool moves rapidly through the colon.I don't think you have a problem , unless,you are having pain,diarrhea,cramps,or any discomfort.Hope this is helpful.

Answered 6/21/2016

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Liver/pancreas: or digestive enzyme problems. The green stool is common in people taking iron supplement and in patients with liver and/or GI disease. Please get a thorough exam and a GI opinion.

Answered 10/15/2017

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Not to worry: I'm not sure why the color green (I'm not a GI specialist), but likely from your stool's rapid transit thru the gut. As for colors, red is not good, black (unless from iron pills), is generally not good, & clear (watery) is not good. Get checked if stool is pale yellow. Hope that helps

Answered 6/23/2016

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