Bone Marrow Donors Worldwide


World Marrow Donor Association is an organization based in Leiden, Netherlands, that coordinates the collection of the HLA phenotypes and other relevant data of volunteer hematopoietic cell donors and cord blood units across the globe.
The global database with volunteer donors was founded in the Netherlands in 1988. Today, the Search & Match Service of WMDA is the world's largest hematopoietic cell database, listing more than 30 million stem cell donors and over 750,000 cord blood units. WMDA participants consist of 75 hematopoietic cell donor registries from 53 countries, and 53 cord blood banks from 36 countries. For further details on the number of Donors/Cord Blood Units per registry within the BMDW database .
These global hematopoietic cells from donors or cord blood units are used to transplant patients around the world with a variety of with life-threatening blood disorders such as leukemia, lymphoma, aplastic anemia, as well as certain immune system and metabolic disorders.