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A 20-year-old female asked:

Dark green stool? just had a lactulose breath test. does that cause the dark green soft stool?

2 doctor answers2 doctors weighed in
Dr. James Ferguson
Pediatrics 47 years experience
Stool color is dependent on the effect of gut action by time/germs on the debris passing through. Bile is the main colorant, starting as ultra green and changing thru lighter green/yellows/browns the longer it stays in. Green poop just means it went through faster. It has no other significance.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Gurmukh Singh
Pathology 50 years experience
Visit this site for info on Green stools in adults https://www.mayoclinic.org/symptoms/green-stool/basics/definition/SYM-20050708 Wish you good health!
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Oct 5, 2021

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