It can be used to treat autoimmune thrombocytopenic purpura because thrombocytopenic purpura is an autoimmune disease in which platelets are destroyed in the spleen due to the production of anti-platelet autoantibodies, and is accompanied by impaired maturation of megakaryocytes, and the patient develops platelet Decreased platelets and a series of bleeding symptoms. Gammaglobulin can be used in the treatment of thrombocytopenia. The mechanism of action is that gammaglobulin can block the antibodies associated with platelets and reduce the binding of antibodies to platelets, thus reducing the destruction of platelets. At the same time, gammaglobulin can also regulate the body’s immune function and reduce the production of related antibodies, through these two mechanisms can treat immune thrombocytopenia. For other causes of thrombocytopenia, propaglobulin may not be as effective.