When is World Blood Donor Day?

It is on June 14 every year, commemorating the birthday of Karl Landsteiner, who discovered the ABO blood group system.

Why was World Blood Donor Day established?

To show gratitude to blood donors, to highlight that blood donation is a gift that saves lives, and to raise awareness that blood donation is essential for patients who need transfusions.

What is the main use of blood for transfusions?

A significant portion is used for medical care of the elderly, with about 88% of blood products for transfusion being used by people aged 50 and over.

What is the current trend among blood donors?

About 53% of blood donors are under 50 years old, but the number of young donors (aged 10-30) is decreasing, raising concerns about future stable supply.

How long can blood be stored?

Blood cannot be stored long-term, so a continuous and sufficient supply through regular donations is essential for stable provision to medical facilities.

June 14th is World Blood Donor Day

Key facts

June 14th is World Blood Donor Day
In conjunction with World Blood Donor Day on June 14th, the Japanese Red Cross Society is calling for understanding and cooperation in blood donation. Since blood cannot be stored long-term and donor numbers are declining due to an aging population with a low birth rate, cooperation from the younger generation to support transfusion medicine is essential.
Source: PR TIMES
Date: Thu Jun 11 2026 01:10:02 GMT+0900 (Japan Standard Time)

Direct answer

In conjunction with World Blood Donor Day on June 14th, the Japanese Red Cross Society is calling for understanding and cooperation in blood donation. Since blood cannot be stored long-term and donor numbers are declining due to an aging population with a low birth rate, cooperation from the younger generation to support transfusion medicine is essential.

Citation: June 14th is World Blood Donor Day (Thu Jun 11 2026 01:10:02 GMT+0900 (Japan Standard Time)), PR TIMES
Source: PR TIMES
Date: Thu Jun 11 2026 01:10:02 GMT+0900 (Japan Standard Time)

AI Summary (NQ-processed)

In conjunction with World Blood Donor Day on June 14th, the Japanese Red Cross Society is calling for understanding and cooperation in blood donation. Since blood cannot be stored long-term and donor numbers are declining due to an aging population with a low birth rate, cooperation from the younger generation to support transfusion medicine is essential.

AI Analysis

Frequently Asked Questions

Q: When is World Blood Donor Day?: A: It is on June 14 every year, commemorating the birthday of Karl Landsteiner, who discovered the ABO blood group system.
Q: Why was World Blood Donor Day established?: A: To show gratitude to blood donors, to highlight that blood donation is a gift that saves lives, and to raise awareness that blood donation is essential for patients who need transfusions.
Q: What is the main use of blood for transfusions?: A: A significant portion is used for medical care of the elderly, with about 88% of blood products for transfusion being used by people aged 50 and over.
Q: What is the current trend among blood donors?: A: About 53% of blood donors are under 50 years old, but the number of young donors (aged 10-30) is decreasing, raising concerns about future stable supply.
Q: How long can blood be stored?: A: Blood cannot be stored long-term, so a continuous and sufficient supply through regular donations is essential for stable provision to medical facilities.