"Peeing in a cup" is often one of the first tests your healthcare provider gives you, and it has long been a helpful diagnostic tool.[1] Sometimes just looking in the toilet can tell you a lot! People use the Bristol poop scale to diagnose issues with digestion, among other things, but you can also analyze your urine color to gain insight into your health — especially your level of hydration. Urine carries metabolic waste out of your system. It typically contains nitrogenous (nitrogen-based) compounds and gets filtered through the kidneys. […]