Blood Group O (Universal Donor)

O Negative : As an O negative donor, we have a great need for your whole blood donations. This type is uncommon – only 6 percent of the population is O negative. O negative patients should receive blood only from O negative donors.

People with every other blood type can safely be transfused with O negative blood. This is usually done in an extreme emergency, before their own blood types can be determined.

O Positive : As an O positive whole donor, it is of great help in donation. This type is the most common – nearly 40 percent of the population is O positive. It is in greatest demand.