The Organización Nacional de Trasplantes (ONT) has published 22 September 2026 the latest figures for the Registro Español de Donantes de Médula Ósea (REDMO). By the end of August 2026, 532,996 people were listed in Spain’s bone marrow donor register. A further 18,766 people registered in the first eight months of the year, an average of 77 a day. The ONT released the figures to mark World Marrow Donor Day.
In Spain, REDMO is run by the Fundación Internacional Josep Carreras . The ONT notes that just over half of those registered are under 40. This demographic profile increases the likelihood of finding a compatible donor for patients, as younger people generally have better medical prospects. The reported figures are consistent with information published concurrently by Spanish specialist and news media.
The expansion of the register is part of a longer-term public programme coordinated by the ONT and implemented jointly with regional blood and tissue services and the Fundación Josep Carreras. Under the Plan Nacional de Médula Ósea , Spain aims to speed up the search for unrelated donors, improve matching and standardise processes across hospitals, logistics and registers. Official agreements and rules on responsibilities in the Boletín Oficial del Estado document this cooperation and the regular updating of procedures. According to the ONT, 24,829 people were added to the register in 2025; the number of haematopoietic transplants actually carried out also increased.
The latest figures strengthen domestic provision, as a larger donor pool increases the chances of finding suitable matches within Spain. This can reduce reliance on international registers and lessen the demands on time and money. At the same time, the ONT points to structural limitations: not everyone on the register will ultimately be able to donate. Age limits, health criteria and the passage of time reduce availability, while activating registered donors remains a practical challenge. Against this background, the ONT stresses the importance of ongoing awareness-raising and renewing the register with younger donors to secure sustainable care for people with leukaemia and other blood disorders.
Editor: Phillipe Schmidt-Araguin (Article created with AI assistance).