There are several methods to elevate the preoperative platelet count, and, in the present case, the patient's platelet count was increased with combination therapy involving a thrombopoietin receptor agonist, intravenous immunoglobulin, and platelet transfusions because her platelet count was less than 50,000/μL. In addition, to the best of our knowledge, there has been only one report describing THA for patients with ITP. The gene discussed is MPL; the disease is autoimmune thrombocytopenic purpura.