Welcome to Bone Marrow Donors Worldwide

Bone Marrow Donors Worldwide (BMDW) is the continuing effort to collect the HLA phenotypes and other relevant data of volunteer stem cell donors and cord blood units, and is responsible for the co-ordination of their worldwide distribution. Participants are 74 stem cell donor registries from 53 countries, and 49 cord blood banks from 33 countries.

The current number of donors and cord blood units in the BMDW database is:

24,847,823 (24,227,051 donors and 620,772 CBU's)

There are currently 905 users from 545 organisations authorized to access the on-line BMDW services.

You may want to see the increase of the number of stem cell donors and cord blood units, or an overview of the number of donors and cord blood units for each participating registrylogin.

Bone Marrow Donors Worldwide started as an initiative of the Immunobiology Working Party of the European Group of Blood and Marrow Transplantation (EBMT) in 1988. In February 1989 the first edition was distributed, which contained the donor files of eight registries with a total of 155,000 volunteer stem cell donors.

On-line Match Programs

If you are looking for the on-line match programs, click on the "BMDW Match Programslogin" link in the menu. To request access to the on-line services, go to the Authorization page and follow the instructions.


BMDW - Bone Marrow Donors Worldwide * Plesmanlaan 1b * 2333 BZ Leiden * The Netherlands