KEGG analysis showed 140 enriched pathways, and 15 results were chosen for visual display: pathways in cancer, PI3K-Akt signaling, lipid and atherosclerosis, endocrine resistance, progesterone-mediated oocyte maturation, prolactin signaling, MAPK signaling, GnRH signaling, IL-17 signaling, Th17 cell differentiation, pathways of neurodegeneration, multiple diseases, Th1 and Th2 cell differentiation, EGFR tyrosine kinase inhibitor resistance, mTOR signaling, and estrogen signaling. This evidence concerns the gene PRL and cancer.