Why do adults have green or blue bowel movements?

Patient's question:

These days, because the valve in the bathroom at home is broken, I can't flush the toilet after having a bowel movement. Every time I use the toilet, I can see my dad's previous poop. I noticed that sometimes his poop is green and sometimes it's blue. I'm very curious. Why is it that sometimes adults' poop is green and sometimes it's blue?

Doctor's answer:

According to the situation described, the color of the stool may be caused by the color of the food consumed. The greenish hue could be due to residual vegetables, which is usually normal. For individuals with poor absorption function, the symptom of undigested food may frequently reappear. As long as there are no other abnormalities in the body, these are all normal. Wishing you well.
The above is the suggestion for the question "Why is adult stool greenish?" It is hoped that it will be helpful to you. Wishing you good health!

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