With a population that has grown very rapidly in recent years, Barcelona has a continual need for all blood types. Blood can be donated to the publicly run Bancs de Sang i Teixits (blood and tissue banks), which can be found at the following Barcelona hospitals: Hospital Vall d'Hebron (93 274 90 25), Hospital Sant Pau i Creu (93 291 92 18) and Hospital Clinic (93 227 54 00 ext. 20 90). You can donate any time from 10:00 to 20:00 on weekdays.