How hoary do you hold to be to donate blood?

Its 18 right?
Answers:
17 and weigh at least 110lbs
It is 16 or 17, depending on which state you live in Source(s): http://www.redcross.org/portal/site/en/m…
Depends on the state. When I first donated, I had to be 17, but my state has since changed it to 16. The difference is under 18 requires a parent's signature as ably.

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