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Comment by killjoywashere | Hacker News Reader

The testes are immunoprivileged. Transplanting testes would probably result in dead nubs of fibrous tissue after a couple years or severe immunosuppression requirements. Even autologous testicular tissue transplant has had only a 1 in 7 success rate (https://www.newscientist.com/article/dn1851-man-fathers-chil...)

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Additionally the testes derive their blood supply from the testicular arteries that branch off the aorta all the way up in the abdomen. I would imagine that 'hooking them up' would be a much more complicated surgery since the vessels would have to be passed through the pelvis into the scrotum.

Oh man it’s like having to pass props all the way down through my react components. No wonder the surgeon closed as #wontfix.

Just need the context API for blood... Somehow.

GraftQL

Nominated for comment of the year,

Well, there are plenty of big arteries in the pelvis the surgeon could anastamose with, and you can harvest the donor artery as far up as you want (it supplies nothing else), so I'm not sure the arterial supply is really the problem. Venous drainage could be a problem.

The other thing: they may actually plan to do those transplants down the line, but there's no sense in doing them if the scrotum fails to take.

Fun fact: this is because they start out the same place as ovaries during fetal development and then migrate down and out of the abdomen leaving a trail of vasculature and nerve endings. This is why you get nauseated after testicular trauma.

But why do I get nauseated when I witness somebody else's testicular trauma?

Everyone's balls are connected in the 4th dimension

That explains so much about the human race

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