SPAIN · REDMO
Become a bone marrow donor in Spain
For people who live in Spain. Live somewhere else? Find your country.
If you live in Spain, you can join REDMO from age 18 to 40. Spain has one national registry, REDMO, but you join it through the blood or transfusion center of your autonomous community, and some communities let you pre-register online. 1 Checked .
Browsing from another country? See how joining works where you live.
| Place | Spain (España, Espanya, Espainia) |
|---|---|
| Region | Southern Europe, Europe 7 |
| Population | About 47.9 million (2023) 8 |
| Registry | REDMO (Fundació Privada Internacional Josep Carreras, once known as Fundación Internacional Josep Carreras) 3 6 |
| Who can join | Ages 18 to 40, listed until your 60th birthdayREDMO’s rules are written for people living in Spain: donors who move abroad for under two years are paused, and those who move for good can ask for their record to go to that country’s registry. 2 |
| How you sign up | When you join REDMO a blood sample is taken to check your tissue type; in Catalonia you can sign up at any blood donation campaign or hospital blood donation point. 1 2 |
| Public cord blood bank | REDMO (Fundació Privada Internacional Josep Carreras)Maternity wards across Spain collect umbilical cord blood for the country’s public cord blood banks; REDMO lists them by region and suggests asking the doctor who follows your pregnancy. 5 |
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A bone marrow donor registry is also called a stem cell or blood stem cell donor registry.
Who runs the bone marrow donor registry in Spain?
| Registry | Ages to join | Who it’s for |
|---|---|---|
| REDMO | 18 to 40 | People who live in Spain, through your region’s blood or transfusion center |
| REDMO | 18 to 40 | People who live in Catalonia |
| REDMO | 18 to 40 | People who live in Castile and León |
In Spain you join REDMO through your autonomous community’s blood center. 1
How do I join in Spain?
Three services sign up people who live in Spain. You only need to join one.
REDMO
Run by Fundació Privada Internacional Josep Carreras, a nonprofit organization.
18–40years old to join
- Who it’s for
- People who live in Spain, through your region’s blood or transfusion center, aged 18 to 40.
- Languages
- Spanish, Catalan and English
Why this one first Spain’s registry, run by the Josep Carreras Foundation, with where to join in each autonomous community (18–40).
REDMO
Run by Fundació Privada Internacional Josep Carreras, a nonprofit organization.
18–40years old to join
- Who it’s for
- People who live in Catalonia, aged 18 to 40.
- Languages
- Catalan and Spanish
REDMO
Run by Fundació Privada Internacional Josep Carreras, a nonprofit organization.
18–40years old to join
- Who it’s for
- People who live in Castile and León, aged 18 to 40.
- Language
- Spanish
Cord blood donation
REDMO
Run by Fundació Privada Internacional Josep Carreras, a nonprofit organization.
- Languages
- English and Spanish
Link checked
Who can join in Spain?
REDMO doesn’t take people who lived in the United Kingdom for more than a year between 1980 and 1996. 2
- Your health
- Most healthy adults can join. Some conditions rule it out. Read the registry’s health rules (opens in a new tab)
Spain and the world’s donor search
REDMO ended 2025 with 520,850 available donors after 24,829 people joined that year, and it coordinated 790 transplants for patients in Spain. 4
Spain’s health ministry says Spanish donors gave 481 times in 2025, up from 35 in 2012, and that REDMO donors now supply 27% of Spain’s unrelated-donor transplants, up from 3%. 6
REDMO is part of Spain’s national health system, run by the Josep Carreras Foundation with the National Transplant Organization under an agreement renewed on Jan 12, 2026. 6
What happens after I join?
Your tissue type is recorded, so searches for patients can find you. If you match a patient, REDMO contacts you, checks you’re still willing and well, and arranges more tests.
Since 2018 REDMO adds only new donors aged 18 to 40, and people on it can donate up to age 60. 2
Questions about joining in Spain
Can I join if I’m not a citizen of Spain?
REDMO’s rules are written for people living in Spain: donors who move abroad for under two years are paused, and those who move for good can ask for their record to go to that country’s registry. 2
How do I sign up in Spain: online, by kit or in person?
When you join REDMO a blood sample is taken to check your tissue type; in Catalonia you can sign up at any blood donation campaign or hospital blood donation point. 1 2
How old do you have to be to join REDMO?
REDMO signs up people aged 18 to 40. It keeps you listed until your 60th birthday. 2
Is REDMO part of the international donor search?
Yes. REDMO is a member of the World Marrow Donor Association.
Can I donate cord blood in Spain?
Maternity wards across Spain collect umbilical cord blood for the country’s public cord blood banks; REDMO lists them by region and suggests asking the doctor who follows your pregnancy. 5
Questions about donating itself have their own pages: Does it hurt?, How donation works and Recovery.
The registries’ own pages
- Fundación Josep Carreras contra la Leucemia (REDMO). ¿Dónde hacerte donante de médula ósea?
- Fundación Josep Carreras contra la Leucemia (REDMO). Preguntas frecuentes - Donación de médula ósea.
- Fundación Josep Carreras contra la Leucemia. Aviso legal.
- Fundación Josep Carreras (REDMO). REDMO Memoria de impacto 2025: Más allá de las cifras.
- Fundación Josep Carreras contra la Leucemia (REDMO). Where to donate umbilical cord blood?
Government and official registers
- La Moncloa (Government of Spain), Ministerio de Sanidad press release. Sanidad, la ONT y la Fundación Internacional Josep Carreras impulsan la donación de médula ósea con la firma de un nuevo convenio de colaboración. Updated Jan 12, 2026.
The World Marrow Donor Association and other figures
- United Nations Statistics Division. Standard country or area codes for statistical use (M49): Overview (English table).
- UN DESA Population Division. World Population Prospects 2024: Total population by sex (CSV).
Research and other sources
- Jada Bascom Foundation. About us: Jada’s story.Checked