SK, I don't know the answer to that. It's like those people who have "too much iron" in their blood, and have to get their blood removed periodically, but then that blood can't be used for anything.

Obviously, if you have a disease that can be transmitted, that rules you out.

If the reason you were unable to donate blood was low blood count, low weight, low iron or low blood pressure, you may still be able to join the NMDP.

Wait- I found the list:

http://tinyurl.com/oydye