Possible pathogens in urine, where epithelial cells lining the urethra are colonized by facultatively anaerobic Gram negatives. Although it is thought that urine is sterile before, there is research it is not sterile, even in the bladder
You can classify urine?
By color. By odor.
What colors can urine be, and what do they mean?
Reddish. Dark yellow. Or green. So reddish can be certain foods like beets or blackberries, destruction of red blood cells causing them to become low, certain drugs, bleeding in the urinary tract. Dark yellow can mean dehydration, recent laxative use, vitamin B, certain drugs like warfarin.
What odors can urine be, and what do they mean?
If it's smelly, it can mean dehydration, eating asparagus, UTI's. There's also diabetes, which can make urine swet.