A lot of people living with chronic diseases, like diabetes, rely on urine analyses to easily check for chemical changes. The dipstick is the standardized way to test urine: you pee into a cup, then dip the stick into the cup. Boxes on the stick change color based on what's in the urine. A certain box changes shade for an excess of proteins, another changes for the number of leukocytes. Problem is, there's no standard dipstick: different dipsticks change different colors. And they're not always easy to read with the naked eye.