The market taxonomy of Immunohematology is further categorized into blood grouping and antibody detection. Blood grouping includes subtypes like A+, B-, and O groups, which form the foundational segment, representing 50% of the market due to their universal diagnostic utility. Antibody detection is divided into IgM, IgG, and mixed-class antibodies, with IgG detection leading at 35% due to its role in identifying delayed transfusion reactions. Emerging subtypes, such as autoantibodies in autoimmune disorders, capture 15% of the market, driven by personalized medicine trends. This classification highlights how subsegment dynamicsโsuch as IgGโs clinical relevanceโdirectly influence the Immunohematology marketโs expansion and innovation priorities.