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Wednesday, 09 August 2023 22:16

Making Motherhood Possible: Safely Moving Life's Precious Cargo

Embryo transfer has become a focal point of discussion for many intended parents, especially when considering the logistics and concerns surrounding the movement of frozen embryos between IVF clinics. These embryos symbolize not just a significant financial and time investment but also the hopes and dreams of countless individuals and couples.

The advent of embryo freezing has revolutionized the realm of in vitro fertilization. This advancement has opened doors for a broader spectrum of individuals, including LGBT couples and those facing infertility challenges, making the dream of having a biological child more attainable than ever. But with this comes the question: How feasible is it to transfer these frozen embryos from one location to another?

Why the Need for Embryo Transfer?

There are various reasons why one might need to transfer embryos:

  • A decision to switch fertility clinics.
  • Relocation necessitates the transfer of embryos to a different clinic.
  • The need to send embryos to a surrogate's clinic.

Embryos are the result of the fertilization of an egg by sperm. Utilizing frozen embryos offers a distinct advantage: it allows the surrogate ample time to prepare her body for pregnancy through specific fertility treatments. This synchronization between the surrogate's ovulatory cycle and the embryo's natural development cycle can enhance the chances of a successful pregnancy. Moreover, if previous attempts have been unsuccessful, embryo transfer offers a fresh opportunity for a different outcome.

Safety Concerns Surrounding Embryo Transfer

The safety of transferring embryos is paramount. Clinics must possess the expertise and equipment to handle, send, and receive these precious biomaterials appropriately.

Most fertility clinics employ vitrification, a method superior to slow freezing, for cryopreservation. This technique ensures the embryos are safeguarded by maintaining their temperature below -120 degrees Celsius using liquid nitrogen. In contrast, slow freezing might expose cells to abrupt temperature drops, which can be detrimental.

For long-term storage, cryopreserved eggs or embryos are housed in containers filled with liquid nitrogen, maintaining a temperature of -196 degrees Celsius. This extreme cold halts all biological activity within the cell, preserving the embryos for extended periods. However, during transportation, maintaining this critical temperature is essential, necessitating regular replenishment of liquid nitrogen.

Embryo Storage and Transportation

Transporting biomaterials, especially embryos, is a process laden with responsibilities and potential hazards. Adherence to stringent standards is crucial to ensure the quality and efficacy of these materials. Dry shippers, when adequately prepared, can maintain temperatures ranging from -150 to -190 degrees Celsius for extended periods, ensuring the safe transit of embryos.

Humidity and temperature control during shipping are vital. It's imperative that ice packs do not come into direct contact with the embryos. The entire journey, including any temperature fluctuations, should be meticulously documented. Some clinics partner with specialized shipping companies that offer cryogenic Dewar containers and other temperature-safe materials to ensure the embryos remain in a frozen state throughout transit.

Furthermore, the transportation of these embryos is undertaken by a licensed international biological materials shipping company. This ensures that the embryos never undergo X-ray scanning. The container housing the biomaterials is equipped with a microchip that features GPS capabilities, allowing for real-time tracking and temperature monitoring. The process of placing the donations in and out of these containers is meticulously supervised. It involves multiple individuals and is consistently monitored under video surveillance, ensuring the utmost safety and transparency.

Cost Implications of Embryo Transportation

The primary determinant of the cost of transporting frozen embryos is the distance between the sending and receiving clinics. While overnight delivery might seem like the best option, if the embryos are stored in a temperature-controlled environment, it might not be necessary, potentially saving on costs. Some parents, if the distance is manageable, might even opt to transport the embryos personally, which can also be a cost-effective alternative.

Additional costs might include insurance and equipment rental, depending on the chosen shipping method and provider.


The advancements in embryo freezing technology have ushered in a new era of possibilities for prospective parents. With the right expertise, equipment, and stringent safety measures in place, fertility clinics can ensure the safe and efficient transfer of embryos, irrespective of the distance. As technology continues to evolve, the dream of starting a family becomes more accessible to many.

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Under Ukrainian law, surrogacy is a legal affordable option for traditionally married couples to have children using their own embryos, or with either an egg or sperm donor. There must be a medical reason you can’t carry a child. You are also able to participate if you have had 4 unsuccessful IVF attempts.


Under Ukrainian law, surrogacy is a legal affordable option for traditionally married couples to have children using their own embryos, or with either an egg or sperm donor. There must be a medical reason you can’t carry a child. You are also able to participate if you have had 4 unsuccessful IVF attempts.