world blood donor day, hemophilia and blood donation concept. male hands holding red blood drop. top view, flat lay.

anemia awareness background bank bleed bleeding blood cancer care cell cells charity concept conceptual copy cupped cutout day disease donate donation donor drop flat give giving hand hands healthcare healthy help helping hemoglobin hemophilia hold holding internal lay life lives male match medical open organ palm paper patient red save saving sick sickness space support symbol top transfer transfusion view volunteer white world young