r/mildlyinteresting • u/urosrgn • 6h ago

My patient’s urine was bright green today.

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21

u/dardenus 6h ago

wtf does that?

29

u/Wide_Philosophy_8109 4h ago

B2 and Methylene blue. They combine bright yellow and blue into green.

No idea what those chemicals are, but OP said.

12

u/Incoherrant 3h ago

The former is just a B vitamin, and not the only one of them that'll give a bright yellow result.

The latter I had to look up, a legit med that's been getting baselessly used as a health supplement for some reason; the wikipedia article about it has a cool (or weird and gross) photo of a brain dyed blue by it.

2

u/ladyandroid14 2h ago

It also stains the toilet. Source: husband

1

u/Lucibelcu 25m ago

I've handled methylene blue in the lab before, not surprised it stains urine and the insides if ingested. That shit stains everything, permanently.

2

u/Wise_Focus_9865 1h ago

Methylene blue (or derivatives of it) are currently in clinical trials for Alzheimer’s disease - I was on the team who developed the tablets, and can confirm it stains absolutely everything in your life a deep & intense blue

2

u/Wide_Philosophy_8109 1h ago

I heard that Elvis had his car painted red, to hide the lipstick from women kissing it. Did you buy a lot blue clothing to live with the stuff dying everything?

Also I'm happy to listen to rants about this stuff if you'd care to share.

2

u/Wise_Focus_9865 1h ago

Nah I was just really scruffy and walked around looking like a Jackson pollock for a few years

1

u/AmeliaOfAnsalon 39m ago

Methylene blue is used for iron overload!