In order to further explore the role of HAMP in various immune cell infiltration in ccRCC, we used the GEPIA and TIMER online website to carry out the relationships between HAMP and several immune marker sets, such as B cell, CD8+ T cells, T cells, Macrophages, M1/M2 macrophages, Tumor-associated macrophage (TAM), Monocytes, Neutrophils, NK, and DCs in ccRCC (Table 2). The gene discussed is CD8A; the disease is nonpapillary renal cell carcinoma.