During the semen donation program, the donor is summoned every week to produce a semen sample. This ejaculate is analyzed and frozen in small aliquots that will be cryopreserved at -196ºC until its use in assisted reproduction cycles. This whole cycle takes 6 months to be closed, and it is considered that a man can give between 15 and 20 samples during this period.
The donation cycle is closed with a new infectious disease analysis. This is because the center must certify that the donor was healthy at the time the donation began and at the time it ended. This is a way of guaranteeing that the donor has not been infected during the 6 months that the donations have lasted and that the samples do not present any type of infectious disease. During the donation process, the samples are kept in quarantine, that is, they are not used in assisted reproduction treatment until the donor has undergone the second infectious disease analysis.
Once the donation process is completed, if the donor and the clinic are in agreement and all the requirements established by Law 14/2006 are still met, the donor may perform another 6-month cycle of sperm donation.