Yellow Color Stool (Changes In Poop Colour)
Bilirubin concentration can vary the color of stool from light yellow to almost black. ... Bacteria and digestive enzymes in the intestine can act on the bilirubin and change its color. Most stool-to-stool changes in color have little meaning.
This is due to the presence of bile in the stool. Normal Stool color can range from light yellow to brown to almost black. If stool is red, maroon, black, clay-colored,pale, yellow, or green this may signify a problem. Treatment for changes in stool color depends upon on the cause and can vary widely.