"O Positive" is a blood type characterized by the presence of the Rh factor, a protein that can be found on the surface of red blood cells. Individuals with this blood type can receive blood from other positive types, such as A Positive, B Positive, and O Negative, making it a versatile option for blood transfusions. This blood type is one of the most common, with approximately 37% of the global population having it. People with O Positive blood can donate to all positive blood types, which is crucial during emergencies when blood is needed quickly.