Genes in the 1p36.12 locus (CDC42, WNT4, and LINC00339) have been associated with endometriosis, uterine fibroids, ovarian and endometrial cancers, and asthma (Gallagher et al., 2019; Kho et al., 2021; Rueda-Martinez et al., 2021; Adewuyi et al., 2022; Mortlock et al., 2022). Here, CDC42 is linked to endometriosis.