That is why I started donating blood in the first place.
I’m B-. I couldn’t donate blood for awhile there because I have lupus and the Red Cross didn’t accept blood from people with lupus, but that was changed and I’m back in! I’m scheduled to donate on 3/7.
Same here, plus I have no anti-CMV antibodies. PLUS I have beautiful veins. I’m a phlebotomist’s dream come true.
When you donate blood they send you a little card with your blood type on it. They also sell little kits (I’ve seen them on Amazon) that you can use at home. No idea whether those are accurate, though.
I wish this poll had a multiple choice option, because I’m an oddity. Depending on the method of testing, I am either Aneg or Apos. I’m what’s called a weak D variant - the Rh antigen “D” is what makes you positive or negative. Have it, you’re positive; lack it, you’re negative. Well, in my case it’s like I have half of it. When they tested my blood at birth, I was called Aneg. Went through my whole life thinking that’s what I was. Then I donated blood in college and the card I got back said Apos. When I went into med tech school and had classes in Blood Bank, I learned about how the testing works and it all made a lot more sense. I was a useful source of educational tubes of blood for my classmates for a while. 
Back when I was able to donate (medical issues, but I gave 15 gallons while I was able) I would try to get to the blood center early, because blood from the first few 0- doners were collected in quad packs for pediatric use. I always liked that.
AB- is way ahead of the average, which is only 1% usually.
Brother C, I was told by the Red Cross that whenever I come in to donate, I’m to remind them to use the quad pack, because O neg/ CMV neg blood like mine can be used quickly for preemies. It didn’t matter if I got there early or late. But this could just be the practice of our Red Cross region.
I always pictured the little quarter-size bag hanging on a pole, doing all kinds of good things. My maternal instict kicking in, probably.
I haven’t the foggiest idea.
Honestly though, why would you need to know? If you end up in the hospital needing blood they certainly aren’t going to simply take you at your word as to what your blood type is… they’re going to check to be sure!
AB-
I’m told it’s the rarest on the planet.
So there.
hell, it’s not even the rarest on the board according to current scores
O+, and due to donate again in just a few weeks. Our college started regular blood drives last year. I love it! I just go in a little early, hop on the donation bus, get a snack, and go to class.
Another Greedy AB+ Checking in…
Actually, I was always told when I gave blood that they appreciated the AB+ blood because that way they could just give it to another AB+ person without having to lose their precious supplies of the good stuff. Take that for what it’s worth, but apparently they prefer not wasting their supplies on us greedy bastards if they’ve got our own kind around.
Like everything else about me - A+
I must have aced the blood test, because my card came back A+.
In my region, they only collected a limited number of quad packs each day, probably because they had limited need for them. I always liked it when they took mine for that purpose, so I made a point of getting in early if I could.
I’m O- and Red Cross calls me all the time to donate. I donate whenever I can, but I just had a baby, and they had been going nuts for months prior asking me when that baby was coming out. I felt special, even if my blood type isn’t.
Sadly, the Red Cross won’t let me donate because my blood comes back as positive for hepatitis.
A false positive according to the lab.
O+. Plus, I’m negative for whatever that virus is- CMV, I think?- so they like my blood for newborn babies. I’ve been called by the Blood Center several times in the past when a hospital told them there was or soon would be a newborn who needed a transfusion. “Can you come in TODAY?” It’s great to be able to do that.
My guess is that just posting a poll like this skews the results a bit so that rarer blood types are over-represented. I suspect it’s just human nature that if you see a chance to let people know some way in which you’re unique or unusual, you’ll speak up. I know I would.
The Red Cross would like me to donate, too (all negs are comparatively rare, being only about 15% of the population), but my veins are not a phlebotomists dream. I used to donate regularly, but they’ve made it into such an ordeal that I don’t bother any longer.
I am O-