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What causes normal stool color?

April 26, 2017causes color normal stool

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What causes normal stool color?

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The color of stool is normally due to the presence of bile, specifically, the bilirubin in bile. Bilirubin is formed from hemoglobin after hemoglobin is released from red blood cells during their destruction, a part of the normal process of replacing the red blood cells in blood. The released hemoglobin is modified chemically and removed from the blood by the liver. In the liver the chemically changed hemoglobin (called bilirubin) is attached to other chemicals and secreted from the cells of the liver into bile. Depending on the conc…