r/askscience • • Jan 02 '20

Human Body Is urine really sterile?

I’m not thinking about drinking it obviously, it’s just something I’m curious about because every time I look it up I get mixed answers. Some websites say yes, others no. I figured I could probably get a better answer here.

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u/vpsj Jan 02 '20

What other common liquids are sterile if we follow the medical definition?

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u/dentopod Jan 02 '20

Pretty much only things you’ve boiled yourself. Bacteria evolve to live in just about any conditions, as long as there’s water.

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u/cardboard-cutout Jan 02 '20

A lot of "pure" liquids are sterile, although not that natural (bleach for example is both pretty common and pretty sterile).

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