Sperm can remain frozen indefinitely. The method used for sperm banking allows us to store the samples without causing any damage to them, and keeping their physical and functional properties almost intact.
Degree in Biochemistry and Molecular Biology from the University of the Basque Country (UPV/EHU). Master's Degree in Human Assisted Reproduction from the Complutense University of Madrid (UCM). Certificate of University Expert in Genetic Diagnosis Techniques from the University of Valencia (UV).