At present, five genes, MITF, SOX10, SNAI2, EDNRB, and KITLG, have been associated with WS2 (Bondurand et al., 2007; Pingault et al., 2010; Sanchez‐Martin et al., 2002; Zazo Seco et al., 2015). This evidence concerns the gene MITF and Waardenburg syndrome type 2.