Sensitivity analysis showed that the MR analysis of the 12 genes (ABCB1, MAP3K8, IFNG, SGK1, IL1B, HSD17B3, LDHA, CYP1B1, EGF, NQO1, ENPP1, MTOR) were reliable, and they were potential biomarkers for BPH (Supplementary Material 4, Supplemental Digital Content, https://links.lww.com/MD/Q553). Here, IFNG is linked to benign prostatic hyperplasia.