[Epidemiological and etiological aspects of excretory azoospermia].
The average spermatozoa concentration in the ejaculate fell progressive even if sharply in the last 50 years. The azoospermia, described as the complete spermatozoa absence in the sperm, has a variable incidence between 10 and 20% in the clinical picture of the male infertility. The authors outline an etiological classification of the azoospermia and analyse the epidemiological and etiological aspects of the obstructive azoospermia.
Enria
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U.D. Urologia, Modulo di andrologia, Ospedale Regionale della Valle d'Aosta.
Favre
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Enria
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D006801:Humans; D015994:Incidence; D007248:Infertility, Male / Q000209:etiology; D008297:Male; D009845:Oligospermia / Q000453:epidemiology* / Q000209:etiology*; D013076:Sperm Count