Similarly,Egg frozen sperm can be used for later treatment or for donation. The standard duration of storing the sperm is around 10 years, however before the treatment the donated sperm has to be stored for six months. Males who have low sperm count, a medical condition that shows infertility may occur in later life, have gone through medical treatment that may affect their fertility, and those who are about to undergo a vasectomy, can elect to store their sperms

Sperm freezing is the established way to preserve male fertility and the process is similar to embryo freezing. Same screening tests will be done to test the quality of the sperm and to confirm the sperm is free from any kind of genetic disease.

The success rate of pregnancy using the frozen sperm is dependant on careful sperm selection and preparation, as sperms can get damaged during the storage process.