<P> Pinkish urine due to consumption of beetroots . </P> <Li> <P> Green urine during long term infusion of the sedative propofol . </P> </Li> <P> Green urine during long term infusion of the sedative propofol . </P> <P> Some time after leaving the body, urine may acquire a strong "fish - like" odor because of contamination with bacteria that break down urea into ammonia . This odor is not present in fresh urine of healthy individuals; its presence may be a sign of a urinary tract infection . </P>

Urine contains nitrogenous waste in the form of