Pearson's correlation analysis was performed between several PCOS phenotypes and the expression of mRNAs (YAP1, EREG, ENTPD6) and lncRNAs (NONHSAT101926.2, NONHSAT136825.2, NONHSAT227177.1, NONHSAT010538.2, NONHSAT191377.1, ENST00000607307, NONHSAT230904.1), which have been confirmed consistent with sequencing results. The gene discussed is EREG; the disease is polycystic ovary syndrome.