A number of gene polymorphisms discovered in Chinese populations, including LHCGR, FSHR, THADA, DENND1A, C9ORF3, YAP1, and RAB5B/SUOX, have been confirmed in at least two replication studies or meta-analyses for different Caucasian populations, and can be considered general PCOS susceptibility variants (Table 1) (55–58, 60–65, 67–71). This evidence concerns the gene RAB5B and polycystic ovary syndrome.