Blood transfusion can save the lives of millions of people. In today’s era, it is a need for the hour for donors to come up and donate safe blood. Every second, in some part of the world, someone needs blood. With this in mind, World Blood Donor Day is celebrated every year on June 14. It is an international event celebrated worldwide to pay homage to unpaid volunteer donors to save various lives. Alike every year, June 14 this year is going to be celebrated as World Blood Donor Day 2021.