Mazindol to induce antegrade ejaculation in a patient with aspermia secondary to diabetic neuropathy.

To the Editor, Erection and ejaculation are necessary processes for semen to be deposited naturally in the vagina, allowing sperm to migrate in search of the egg in the female reproductive tract and achieve fertilization. However, in some cases, complete retrograde ejaculation (with absence of ejaculation - aspermia) or partial retrograde ejaculation (decreased seminal volume - hypospermia - and sperm concentration - oligozoospermia) may occur. In cases of aspermia or anejaculation, retrograde ejaculation should be suspected, and the diagnosis is confirmed by finding sperm in the post-ejaculatory urine [...].