More eggs than usual might be developed during In Vitro Impregnation treatment which can be useful as there will likely be more healthy embryos than are required. Most clinics will give you the chance to freeze and store acceptable ‘spare’ fertilized eggs for future use. This can be as part of the In Vitro Impregnation agreement, or as an extra service for which you may have to pay. Sometimes, In Vitro Impregnation treatment is postponed after the eggs have been gathered due to unanticipated circumstances, in which case, storing the fertilized eggs would be a worthwhile procedure.

There may be a time where you want to try In Vitro Impregnation again and by having your fertilized eggs already stored it can save time and trouble of producing the eggs again. Another advantage to this approach is that you can increase your prospects of conception from one egg collection and avert the risk of Ovarian Hyper-Stimulation syndrome from further fertility treatments. This storage gives you plenty of time as fertilized eggs can be frozen and stored away safely this way for five years, sometimes much longer. For example, if you or your partner have been diagnosed as sterile and are likely to want to use your fertilized eggs for later tries at In Vitro Fertilisation or if you are at risk of having a baby with a genetically inherited condition.

There are times where perhaps a serious sickness is involved where the embryos can be stored away safely for 10 years. Under special conditions it may be possible to store them for even longer than ten years. You can alter your mind about storing them at any time, in which case you should let the clinic know about your decision. It is also the clinics responsibility to remain in contact with you on a regular basis while your embryos are being stored away safely with them to ensure you want to continue doing so. Don’t forget to let the clinic know if you change your address or if your situation changes in other areas, for instance, if you split up or split up. In the case of split up for instance, just because this has happened, it does not necessarily mean that either partners consent to use the embryos has been withdrawn.

The medical procedure used to freeze the fertilized eggs is called cryopreservation and utilises liquid nitrogen. Only healthy, embryos that have been developing normally will be selected for freezing. Even when great care is taken however, some embryos do not endure freezing and thawing. One way to prepare for this eventuality is to unfreeze more embryos than are needed for transfer when the next treatment cycle is due.