MedGen

Spermatogenic failure-2 (SPGF2) is characterized by male infertility due to azoospermia (Tang et al., 2020; Akbari et al., 2021). For a discussion of phenotypic and genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-28 (SPGF28) is characterized by nonobstructive azoospermia, with a Sertoli cell-only phenotype observed in testicular tissue (Kasak et al., 2018). For a discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-57 (SPGF57) is characterized by male infertility due to error-prone meiosis of germ cells and spermatogenic arrest at the late pachytene stage (Nagirnaja et al., 2021). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Any azoospermia in which the cause of the disease is a mutation in the SYCE1 gene. [from MONDO]

Spermatogenic failure-25 is characterized by small testes and infertility, with severe oligozoospermia or azoospermia due to maturation arrest at the primary spermatocyte stage (Okutman et al., 2015). For a general phenotypic description and a discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-32 (SPGF32) is characterized by male infertility due to nonobstructive azoospermia. Testicular biopsy has shown absence of spermatogenic cells and a Sertoli cell-only pattern (Choi et al., 2010). For a discussion of phenotypic and genetic heterogeneity of spermatogenic failure, see 258150. [from OMIM]

Spermatogenic failure-73 (SPGF73) is characterized by male infertility, resulting from nonobstructive azoospermia due to meiotic arrest (Li et al., 2022). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-61 (SPGF61) is characterized by male infertility due to nonobstructive azoospermia, resulting from complete meiotic arrest at the primary spermatocyte stage (Riera-Escamilla et al., 2019;van der Bijl et al., 2019). Mutation in the STAG3 gene also causes premature ovarian failure (POF8; 615723), resulting in female infertility. For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-60 (SPGF60) is characterized by male infertility due to nonobstructive azoospermia. Testicular biopsy shows maturation arrest before the pachytene stage (Krausz et al., 2020). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-29 (SPGF29) is characterized by nonobstructive azoospermia or oligozoospermia. Sperm that are present are immotile and exhibit abnormal morphology, primarily defects of the acrosome and head-neck junction (Kherraf et al., 2017). For a discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-75 (SPGF75) is characterized by male infertility due to nonobstructive azoospermia resulting from maturation arrest at the spermatocyte stage (Krausz et al., 2020; Yao et al., 2021). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-71 (SPGF71) is characterized by male infertility due to nonobstructive azoospermia (Alhathal et al., 2020). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-59 (SPGF59) is characterized by male infertility due to nonobstructive azoospermia. Testicular biopsy shows maturation arrest (Salas-Huetos et al., 2021). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-62 (SPGF62) is characterized by male infertility due to nonobstructive azoospermia, resulting from complete metaphase arrest at the spermatocyte stage (Riera-Escamilla et al., 2019). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-74 (SPGF74) is characterized by nonobstructive azoospermia and male infertility due to complete meiotic arrest at the spermatocyte zygotene or pachytene stage. Some men exhibit reduced testicular volume and/or reduced testosterone level (Wyrwoll et al., 2022). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Absence of any measurable level of sperm in his semen, resulting from a defect in the production of spermatozoa in the testes. This can be differentiated from obstructive azoospermia on the basis of testicular biopsy. [from HPO]