Every year, on 14 June, countries around the world celebrate World Blood Donor Day (WBDD). The event serves to raise awareness of the need for safe blood and blood products and to thank blood donors for their life-saving gifts of blood. Blood is an important resource, both for planned treatments and urgent interventions. It can help patients suffering from life-threatening conditions live longer and with a higher quality of life, and supports complex medical and surgical procedures. Blood is also vital for treating the wounded during emergencies of all kinds and has an essential, life-saving role in maternal and perinatal care.