Cryopreservation is a process under which the eggs, sperms and embryos are frozen in a sub zero temperature for use in the future. They are basically of three types :-

  1. Sperm Cryopreservation
  2. Eggs Cryopreservation
  3. Embryos Cryopreservation
Sperm Cryopreservation:

Sperm are frozen to preserve because of a string of reasons:

  • To create a sperm bank;
  • To donate stored sperm;
  • To use it during the treatment if the male partner is unable to ejaculate on the stipulated day;
  • Before undergoing vasectomy;
  • Prior to Cancer treatment which might adversely affect fertility;
  • Retrieved sperms from epididymis (PESA) or testes (TESA).

If the sperm is to be used for treatment for donor it is used for 1 year and if it is used for pre-chemotherapy, it is stored for 10 years which can be extended in certain cases.