Spearman correlation analysis indicated that UDFF was correlated with SWV, ovarian morphological indices, ovarian stromal blood flow parameters, clinical characteristics, serum biochemical indices, and sex hormone levels.<h4>Discussion</h4>Women with PCOS and obesity have higher UDFF values than the control group. This evidence concerns the gene PLXNA3 and obesity due to melanocortin 4 receptor deficiency.