The color of your poop and pee can sometimes change, which tells you things about your body. Per an expert, a little-known cancer can also cause such changes.

Medically reviewed by Qin Rao, MD Noticing grey poop may come as a surprise, but it's not always an emergency. Grey poop ...

Urine color is mainly determined by chemical content ... Bilirubin is not normally present in urine and indicates either bile duct obstruction or intrinsic hepatic disease. Elevated levels of ...