Egg/Sperm Freezing PDF Print E-mail

Egg and Sperm Freezing

Sperm Cryopreservation


Cyprus Cosmetic Surgery - Cyprus General Surgery - Ophthalmic - Cyprus Dental treatments


The freezing of semen and its storage at very low temperature for future attempts at conception using one of the available assisted reproductive technologies is considered for a collection of different reasons.

   1. Men who opt to receive reversal or irreversible vasectomy are advised to store their semen in view of preserving their fertility potential pending circumstantial changes during their lifetime.
   2. Treatment against testicular cancer or lymphomas using surgery, radiation or chemotherapy may have a detrimental effect on sperm production. Patients scheduled for such treatments are advised to retain a number of semen frozen specimens insuring their fertility potential in the future
   3. Men can freeze their sperm prior to an artificial reproduction treatment cycle as a back up. Occasionally, men face difficulties in producing a fresh semen specimen on the day that this is required or the sample they produce is of poor or inadequate quality mainly due to stress related reasons.
   4. Couples pursuing artificial reproduction treatments may find themselves limited by the male partner’s time schedule which may be rendering him unavailable to produce a fresh semen specimen on the critical day. Previously cryopreserved semen alleviates the couple from the frustration and stress of such circumstances.
   5. Patients who receive testicular sperm extraction during IVF related treatments are advised to consent to sperm freezing in view of retaining their gametes for possible future attempts.


Oocyte (Egg) Cryopreservation


Oocyte cryopreservation provides the opportunity to conserve patient's eggs or oocytes at very low temperatures for future attempts at conception using fertility treatment. Unlike sperm cryopreservation, egg freezing has a very short history. Between 100 and 200 children have been born worldwide following egg freezing Although these children do not appear to exhibit unusual health problems, there is not enough data to conclude that this method is safe. Therefore egg freezing is considered experimental and patients who request oocyte cryopreservation will be offered the procedure as part of a research protocol.

Egg freezing requires that the patient undergo ovarian stimulation and surgical procedures to acquire the oocytes. The oocytes are frozen by an ultra-rapid freezing method (vitrification).

Oocyte cryopreservation is most appropriate for women under 30 years of age who wish to defer family building into later years when the ovarian reserve has been deplenished, for couples who wish to limit the number of embryos created by assisted reproduction, or for women facing treatment such as cancer therapy that may diminish ovarian function.


Cyprus Cosmetic Surgery - Cyprus General Surgery - Ophthalmic - Cyprus Dental treatments


Last Updated ( Wednesday, 26 August 2009 )