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. 2004 Nov;82(5):1463-5.
doi: 10.1016/j.fertnstert.2004.06.035.

Etiology of azoospermia in 100 consecutive nonvasectomized men

Jens Fedder  1 , Dorthe Crüger, Birthe Oestergaard, Gert Bruun Petersen
Affiliations
Free article

Etiology of azoospermia in 100 consecutive nonvasectomized men

Jens Fedder et al. Fertil Steril. 2004 Nov.
Free article

Abstract

History was taken systematically for 100 azoospermic, nonvasectomized men referred consecutively to a Danish fertility clinic. The men were examined by ultrasound, and their blood samples were analyzed for karyotype, Y microdeletions, and cystic fibrosis transmembrane conductance regulator gene mutations. In 29% of patients, the condition could be explained by genetic abnormalities; in 22%, by diseases or external influence; and in 27%, by former cryptorchidism. The azoospermic condition remained unexplained in only 22%.

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