Eleven indicators were selected via three methods (Spearman, REF, MI) as candidates for the model of infertility diagnosis: High-density lipoprotein (HDL), TG, 25OHVD3, PT, ACA, 25OHVD, HCY, urine bacterial count (BACT), TPOAb, E2, and hepatitis B core antibody (Anti-HBc) (Figure 3A). Here, KRT88P is linked to Infertility.