IL-23R has been identified to associate with multiple diseases, including alopecia areata (rs10889677) and nephropathy (rs10805303) (Figure 3) (Safrany et al., 2011; Yu et al., 2012; Huang et al., 2016; Qin et al., 2016; Poomarimuthu et al., 2018; Sode et al., 2018; Zhong et al., 2018; Kramer et al., 2019; Loures et al., 2019; Ruyssen-Witrand et al., 2019; Tabatabaei-Panah et al., 2020). This evidence concerns the gene IL23R and alopecia areata.