Urine

[Farleigh1]

Just a quick question. Why does "normal" yellow coloured urine dry brown when it gets onto white fabric?

[tillyyy]

I'm not sure how to answer your question, possibly oxidation or something. but I would like to know how on earth you have urine on white fabric.

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[Farleigh1]

I have some brown ringed stains on my duvet and was wondering what they were. Someone said urine hence my question.