B Blood is one of the four main blood types in the ABO blood group system, which also includes A Blood, AB Blood, and O Blood. It is characterized by the presence of the B antigen on the surface of red blood cells. People with B Blood can receive blood from donors with B Blood and O Blood. Individuals with B Blood can donate to those with B Blood and AB Blood. This blood type is less common than A Blood and O Blood, making up about 10% of the global population. Understanding blood types is crucial for safe blood transfusions and organ transplants.