CD8A and benign prostatic hyperplasia: Compared to the NS group, the number of CD8+ TILs in the FSP‐RZ‐BPH group increased by 3.4 fold, specifically, CD8+ IFN‐γ+ T cells in the FSP‐RZ‐BPH group were 9.8 fold more abundant than those in the NS group (Figure 5j,k).