Anejaculation is the inability to ejaculate semen despite stimulation of the penis by intercourse or masturbation. If anejaculation is caused by medications, stopping the medicine will most likely restore normal function.
Vibrostimulation: The vibrator acts by providing a strong stimulus for a long duration (20-30min) to the penis. Vibrator stimulation results in ejaculation in about 60% of men suffering from a neurological (spinal cord) injury. This is a simple and quite effective way of retrieving semen in order to proceed with artificial insemination (inserting sperm directly into the uterus).