| Men with nonobstructive azoospermia and severe ogliospermia should be informed of the potential genetic abnormalities associated with azoospermia or severe oligospermia. |
| The Klinefelter's syndrome is associated with azoospermia almost at all cases. |
| To study meiotic abnormalities in men with nonobstructive azoospermia. |
| In patients with azoospermia or severe oligospermia, the karyotype should be determined because of the increased incidence of karyotypic abnormalities in this population. |
| In the majority of the dogs in the field study, aspermia or azoospermia occurred. |
| A genetic disease that can cause obstructive azoospermia in men. |
