Rare Donors

You’ve got something rare to share! You are a rare blood donor. Your blood type is present in less than 1/1000 people. That’s a big deal and we want to be sure you to know it.

• Having rare blood means that your blood is either missing one very common antigen that is present in most of the general population or it’s missing a combination of antigens. An antigen is a substance on your red cells like a protein.
• Every 2 seconds someone needs blood. And people with rare blood depend on one another to be sure there’s an abundant supply of blood available when needed.
• Rare blood may run in your family. If you have biological siblings, tell them about your rare blood. They have a chance of having rare blood too. You can make donation a family event!

Get More Information On Blood Type Compatibility

The Red Cross and the American Rare Donor Program (ARDP)

The Red Cross is part of the American Rare Blood Donor Program (ARDP), a national organization whose mission is to ensure that rare blood is available for the patients who need it. Twice a year the ARDP will reach out to you to update your contact information, so you can be found quickly if needed.

Don’t wait to be called to donate: You can donate blood every 56 days if you continue to meet the eligibility guidelines for donation.

You can also: Download the Blood Donor App or call 1-800-RED CROSS (1-800-733-2767). More information on rare blood types and diversity.