Question
My baby is 14 months old and has been having diarrhea for three days with green stools. What should I do?
Answer
Normally, human feces are yellow because bile pigment, a yellow substance, colors the feces. However, when the bile pigment is broken down, it can turn green. When a baby urinates, the bile pigment on the feces reacts with oxygen in the air to break down into green chlorophyll, causing the feces to turn green again. This is a normal physiological phenomenon, so there’s no need to worry. You can adjust and reduce the baby’s diet to give their digestive system a rest.