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.