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. 2019 Sep 30;90(Suppl 10):62–67. doi: 10.23750/abm.v90i10-S.8762

Table 1.

Main causes of genetic forms of male infertility.

Pre-testicular causes

  • Normosmic hypogonadotropic hypogonadism

  • Anosmic hypogonadotropic hypogonadism (Kallmann syndrome)

  • Prader-Willy syndrome

  • Laurence-Moon-Biedl syndrome

  • Others
Testicular forms

  • Klinefelter syndrome

  • Numerical chromosomal abnormalities

  • Y chromosome microdeletions

  • Chromosomal translocations

  • Down syndrome

  • Myotonic dystrophy (Steinert syndrome)
Post-testicular causes

  • Kartagener syndrome

  • Congenital bilateral deferent duct agenesis

  • Young syndrome
Others

  • Androgen resistance

  • Disorders of sexual development