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FAQs about Joining the Registry


  • Why is there a need for donors to join the NMDP Registry?
  • On any given day, more than 6,000 men, women and children desperately search the National Marrow Donor Program (NMDP) Registry for a matching bone marrow donor or cord blood unit. These patients have leukemia, lymphoma and other life-threatening diseases that can be treated by a bone marrow or cord blood transplant.

    Even with a Registry of millions, there are many patients waiting and hoping, unable to find a match. Donors with diverse racial or ethnic backgrounds are especially needed. To learn more, see The Need for Donors.

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  • What is a bone marrow transplant?
  • Bone marrow transplant is a life-saving treatment for people with leukemia, lymphoma and many other diseases. First, patients undergo chemotherapy and sometimes radiation to destroy their diseased marrow. Then a donor's healthy blood-forming cells are given directly into the patient's bloodstream, where they can begin to function and multiply.

    In order for a patient's body to accept these healthy cells, the donor's tissue type needs to match the patient's type as closely as possible. Patients who do not have a suitably matched donor in their family may search the NMDP Registry for an unrelated bone marrow donor or cord blood unit.

    Related Links:  

    Learning about Bone Marrow or Cord Blood Transplants

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  • How do I become a bone marrow donor?
  • You can join the NMDP Registry. Doctors around the world search our Registry to find donors for their patients. If a doctor selects you as a suitable match for a patient, you may be asked to donate bone marrow or circulating blood cells. Patients need donors between the ages of 18 and 60 who meet health guidelines and are willing to donate to any patient in need. To learn how to join the NMDP Registry, see Join the Donor Registry.

    Related Links:  

    Steps of Bone Marrow and PBSC Donation

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  • Why is there a cost associated with joining the Registry?
  • When you join the NMDP Registry, you may or may not be asked to pay the costs of your tissue typing. Costs depend on resources and support available. Your tissue type is used to match you to patients and is identified by testing a sample of your blood or cheek cells. On average, the tissue typing to add each new donor to our Registry costs $52.

    Sometimes, a sponsor may cover all or part of these tissue-typing costs. Other times, there is no sponsor to cover the costs, and donors are asked to pay the tissue-typing cost when they join. We count on people like you to help offset these costs. Any contribution you make to pay for tissue-typing costs is appreciated and tax deductible. To help cover the cost of tissue typing for new donors, contribute now

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  • What is my commitment if I join?
  • When you join the NMDP Registry, you make a commitment to:
    • Be listed on the Registry until your 61st birthday, unless you ask to be removed.
    • Consider donating to any searching patient who matches your tissue type.
    • Keep us updated if your address changes, you have significant health changes or you ever change your mind about being a donor.
    • Respond quickly if you are contacted as a potential match for a patient.

    You have the right to change your mind about being a donor at any time. Donating is always voluntary.

    If you decide you do not want to donate, let us know right away. That way we can continue the search for another donor without dangerous — even life-threatening — delays for the patient.

    Related Links:  

    Update Your Contact Information, Understanding Your Commitment

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  • Why does a person have to be 18 to be a donor? Can't my parent sign the consent for me?
  • The NMDP requires volunteer bone marrow donors to be between the ages of 18 and 60, which is standard medical practice. An individual must be 18 to donate because marrow donation is a surgical procedure and the person undergoing the procedure must legally be able to give informed consent. A guardian or parent cannot sign a release or give consent because unrelated bone marrow donation is a voluntary procedure and is not beneficial or life-saving to the donor.

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  • If I'm over 60, why can't I join?
  • The age limit is not meant to discriminate. The NMDP must use chronological age to determine eligibility to protect the safety of the donor and provide the best possible treatment for the patient. With age comes a small increase in the risk of side effects from anesthesia.

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  • If I join the NMDP Registry, how likely is it that I will donate to someone?
  • We cannot predict the likelihood because there is so much diversity in tissue types. You may never be identified as a match for someone needing a transplant. Or, if yours is a common tissue type, you may be identified along with a number of other potential donors who match a patient. The patient's doctor decides which donors will be contacted.

    If we call to say you are a match for a patient, you may be the one who can save the patient's life.

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  • Does race or ethnicity affect matching?
  • Racial and ethnic heritage are very important factors. Because tissue types are inherited, patients are most likely to match someone of their own race or ethnicity. Today, there simply aren't enough registered donors of diverse racial and ethnic heritage. Adding more diverse donors increases the likelihood that all patients will find a life-saving match.

    Donors of these backgrounds are especially needed:
    • Black or African American
    • American Indian or Alaska Native
    • Asian
    • Native Hawaiian or other Pacific Islander
    • Hispanic or Latino
    • Mixed heritage

    Related Links:  

    The Need for Donors

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  • What is the donation process like?
  • Adult donors may be asked to donate in one of two ways:
    • Bone marrow donation is a surgical procedure done under general or regional anesthesia so the donor experiences no pain during the collection process.
    • Peripheral blood cell (PBSC) donation involves removing a donor's blood through a sterile needle in one arm. The blood is passed through a machine that separates out the cells used in transplants. The remaining blood is returned through the other arm.

    For an overview of the donation process, see Steps of Bone Marrow & PBSC Donation.

    Related Links:  

    Myths & Facts about Bone Marrow Donation, Donation FAQs

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  • Can I get tested for a specific patient or family member?
  • When you join the NMDP Registry, you make a commitment to consider donating to any searching patient who matches your tissue type. As a volunteer, you are never under any legal obligation to donate and your decision is always respected. However, because a late decision not to donate can be life-threatening to a patient, please think seriously about your commitment before deciding to join our Registry.

    You can request a copy of your own tissue typing results after you join the NMDP Registry. However, if you want to be tested only for a specific patient, you will need to have your tissue typing test done privately. You can contact the patient's transplant center or transplant doctor for more information.

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  • I've already been tested for a family member. How can I add my results to the NMDP Registry?
  • Get a copy of your human leukocyte antigen (HLA) tissue typing lab report and contact the NMDP donor center in your area. You will need to fill out a health history form to verify you meet medical guidelines. You will also need to sign a consent form agreeing to be listed on the NMDP Registry. Once your tissue type is listed on our Registry, we will contact you if you are identified as a possible match for a patient.

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  • I think I may have already joined. How can I verify that I am on the Registry?
  • Whether you join the NMDP Registry online or in person, you are part of the same Registry. If you have previously given a blood sample or cheek cell sample to be tested for our Registry, you do not need to join again. If you are unsure whether you joined, you can complete our online form to confirm you are on the Registry or you can contact us at 1 (800) MARROW-2.

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Page last updated: December 2008

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