In the sample of patients with NSHL, syndromes such as Pendred syndrome (six in the SLC26A4 gene), deafness, and male infertility syndrome (DIS) (three males and two females with NSHL with bi-allelic gross deletions in the STRC and CATSPER2 genes) were also found. Here, CATSPER2 is linked to deafness-infertility syndrome.