Archaic - but 30-40 years ago gay men were more at risk of carrying certain blood-borne illnesses such as HIV and hepatitis. This is no longer the case and all blood is screened for those viruses as a matter of course, but it always takes government paperwork years if not decades to catch up.
The last time I recently went to give blood -- about two years ago -- I was not allowed to because I was honest on the questions. (I had had sex with a man within a certain time period, I believe - - maybe they asked about a certain time period, I got sort of pissed, I may not remember correctly).
Did it have a question asking if I regularly had myself checked for HIV and STD's and other conditions? No. (I do; even with very little activity, to be honest.) And did it ask for the results of those tests? No. (Always negative). And did it ask how sexually active I am? No. (Not so much, actually)
I don't know what kind of violation it is -- or even if it is -- but the message is clear ~ those heterosexuals apparently are safe to screw the world and everyone in it and share needles and all sorts of things - - and it's all good! Give blood! We'll take it! After more than two decades of being refused, I guess I'll keep my blood to myself.
(I admit I've not kept up on the details of this topic so my answer here may be out of date. And I should not have answered in anger. I'll post it anyway.)
This post was edited by WelbyQuentin at June 23, 2017 5:43 PM MDT