Blood donor suitability criteria are based on science, informed medical opinion, and regulatory rules3. Blood donors are deferred for various reasons. Individuals disqualified from donating blood are known as “deferred” donors. To make blood transfusion safe for the patients many safety measures are undertaken by the blood transfusion community. Of the many safety measures, the most important is selection of blood donors. The rate and reasons of deferral differs from region to region and one center to the other 9.