The following combinations of genotypes with chronic endometritis and induced abortions were associated with UL: rs11031010 CC FSHB × rs12324955 GG FTO × abortion (β = 0.92, p = 2.38 ∗ 10–12), rs4374421 TT LHCGR × chronic endometritis × abortion (β = 0.95, p = 2.78 ∗ 10–14), rs12324955 GG FTO × rs11031010 CC FSHB × chronic endometritis × abortion (β = 0.99, p = 5.75 ∗ 10–13) (Supplementary Table 11). This evidence concerns the gene LHCGR and chronic endometritis.