Quote:
Originally Posted by Myst
yes sterile. human urine is sterile when expelled
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It usually is (urinary tract infections, bladder infections, and the like tend to make the urine passing through them not-so-sterile, after all).
But then, immediately after being expelled (like to the nanoscond), it becomes a growth medium that accelerates the development of many forms of bacteria. By the time you get to the bathroom to wash off that golden shower, the bacteria in the urine that you're coated with is possibly already on its 3rd generation.
The "fact" that urine is sterile is a triviality that is generally misused in conversation.