Pearson’s correlation analysis showed that the preoperative serum levels of Hp did not significantly correlate with preoperative platelet count of the same blood samples collected for this study in ITP patients (r = 0.244, p = 0.087), while a positive correlation was found between the preoperative serum Hp levels and postoperative peak platelet count (r = 0.622, p < 0.001). Here, HP is linked to autoimmune thrombocytopenic purpura.