There’s a good chance that you haven’t heard about a rare condition called chromhidrosis. In a nutshell, the person afflicted with the disease produces colored sweat, from yellow to green, even red and black.
It is commonly caused by a disorder in the sweat glands, and while there are treatment options, the condition may lead to emotional distress.
If lesser-known medical conditions pique your curiosity, you may get a kick out of this list. It’s a collection of responses from a Reddit thread from years back that could very well make you want to do a few deep dives. Enjoy reading!
#41

CLN6 - only about 125 cases described in the literature. My brother has the disease and I am a carrier. His diagnosis was unknown until I had extensive genetic testing done prior to fertility treatment and found I was a carrier. I’m also an IM doc, driven initially by my desire to figure out what disease my brother had. I have seen vCJD. There was a small cluster at a hospital I trained at thought to possibly be associated with wild game. I also had a patient with Leigh syndrome.
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#42

Probably not the rarest I’ve ever seen, but fournier’s gangrene comes pretty close. Only saw it once in my career. Don’t look it up if you value your stomach contents.
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