DO analysis revealed that DEGs PSAT1, FOLR1, ABCB1, SFRP1, SFRP1, BUB1B have a greater association with female reproductive system tumor-related diseases, such as malignant ovarian surface epithelial-mesenchymal tumor, ovarian epithelial carcinoma, and ovarian cancer. This evidence concerns the gene FOLR1 and ovarian cancer.