Objective: To search and to identify spermatozoa and spermatids, present in the ejaculate of non-obstructive azoospermic patients.
Materials And Methods: 27 patients, aged between 18 and 48 years, with initial diagnosis compatible with non-obstructive azoospermia, underwent up to 3 seminal samples, with assessment of macroscopic and microscopic parameters differentiated for each sample. In the first sample, 5 microL of semen were analyzed in a Horwell chamber in order to assess the presence or absence of spermatozoa.