Blood Donation Day in Iran, Mordad 9. This day is designated in Iran’s official calendar to raise public awareness about the importance of blood donation and to encourage people to participate in this humanitarian act. Blood donation plays a vital role in meeting the needs of medical centers and saving patients’ lives, with thousands of people visiting blood transfusion centers each year on this date. In recent years, various awareness campaigns and events have been organized across the country to promote a culture of regular blood donation. The day serves as a reminder of the ongoing need for blood donors and the significant impact of blood donation on public health.