Embryo Freezing

Embryo freezing or embryo cryopreservation is the process of preserving the embryo by freezing at the specific temperature and conditions with the intention of the future fertility. The first successful pregnancy derived from the frozen embryo was in the year 1984, although in 1983, Alan Trounson and Linda Mohr reported first ever pregnancy but which failed soon after 10 weeks of gestation.


This is the technique widely being used in the fertility centres. The conditions deciding the embryo freezing are

  • The left over eggs or embryos after the successful IVF treatments, are saved and preserved for the future pregnancies.
  • In females with medical illness such as cancer, who should undergo chemotherapy or radiotherapy, their pregnancy can be delayed with the help of this technique.
  • Spare embryo for the embryo donation can also be saved for the other infertile couples.


The selected embryo’s are freozen at -196℃ in a liquid nitrogen, up to the period of 10 years. The maintenance of embryo requires the specific temperature and conditions.


At Lakshmi Fertility Centre we use two types of embryo freezing methods such as vitrification and slow programmable freezing (SPF) method. And according to most studies, vitrification process is more accurate, where the survival and success rates are higher than SPF methods. Vitrification using high concentration of cryoprotectant can solidify cells without ice formation, which helps in increasing the success rates.

Success Rates

The embryo freezing is maintained by the specialized IVF centres, At Lakshmi Fertility Centre the success rates are higher and favourable too. The success rates of this technique in treating the infertility has raised to 60-80% after the commencement of the fertility treatment.