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  Egg Cryopreservation
  Egg cryopreservation has also been attempted, in order to have egg viability sustained in liquid nitrogen. Unfortunately, the survival rates of such eggs have until now been disappointingly low.

A new egg freezing method (vitrification) has recently been developed; this method promises survival rates that exceed 70%. This new technique represents a major step forwards in assisted reproduction, since it offers women pregnancy opportunities with their own eggs for a long period in the future and thus reduces early menopause anxiety.

Women who are about to undergo treatment that may affect their ovaries (radiotherapy, chemotherapy or a major operation) can preserve their eggs for later use.

Therefore, proper planning can now help women avoid egg donation programmes and achieve pregnancy with their own eggs.