For men

A solution for the future

Nowadays, freezing sperm in liquid nitrogen is the most effective method of preserving fertility in adult and adolescent males.

Fertilys also provides cryopreservation of testicular tissue for prepubertal boys diagnosed with cancer. (See the section on children)

How are sperm cells frozen?

Ideally, retrieval is done on site, most commonly by masturbation. The sample is divided up into several containers (small vials). These containers of semen are stored in tanks containing liquid nitrogen at -196°C.

Sperm can be preserved for a number of years without affecting fertility. When the time comes, they can be used for artificial insemination or in vitro fertilization. Publications in the field have reported pregnancies resulting from sperm that had been frozen for over 30 years.