For instance, there are times when your urine might contain white particles. In some cases, you might even notice it looks as though oil is separating out from the normal watery composition.

The exact composition of urine can vary day to day as well, she said. But most of it – from 91% to 96% – is water. Thousands of additional components have been identified in urine. Pollock and ...

Subsequent studies revealed that they detect and respond to this change in urine composition by showing a distinct chemotaxis response relative to that for urine from a healthy person. According ...