title: Incomplete obstruction of the male genital tract: a cause of oligozoospermia.
abstract: Of 71 patients with obstructive azoospermia, 8 gave a history and/or had documentary evidence of oligozoospermia in the past and 2 gave a history of paternity. Thus a period of oligozoospermia preceded their azoospermia. "Partial obstruction" is therefore postulated as a cause of oligozoospermia.
mesh_terms: D001706:Biopsy; D003251:Constriction, Pathologic; D004822:Epididymis; D006801:Humans; D008297:Male; D009845:Oligospermia / Q000209:etiology*; D013733:Testicular Diseases / Q000150:complications*; D013737:Testis / Q000473:pathology; D013997:Time Factors