Are You A Member Of Blood Group O? See What It Means..READ FULL; ORIGINAL POST; FROM SOURCE.
1. Universal Donor: One of the most significant traits of blood group O is that individuals with this blood type are considered “universal donors” for red blood cells.
This means their blood can be donated to people with almost any other blood type, making them highly valuable in emergency situations or for blood transfusions..Read D Original / Full Story .