Embryo freezing

If there are any good quality spare embryos left over from your treatment cycle, these can be frozen and stored for future use. They can be used if your treatment is unsuccessful or for a sibling pregnancy.

Embryos are frozen by removing the fluid from inside the cells before freezing them in liquid nitrogen. This is called vitrification. Embryos rapidly frozen in this way have excellent survival rates – over 95% – after being thawed. In recent years, success rates using frozen embryos have really improved. We now see very similar success rates using frozen embryos to our fresh IVF cycles.

Embryos are best frozen either on Day 1 or Day 5 after egg collection. Only top-quality embryos can survive the process.

Come to one of our
Virtual Open Evenings!

Same sex couples and single women:
Thursday 1st October (5:00 pm)

Hetero couples:
Wednesday 16th September (5:00 pm)

Book your place online using the button below.

Book Your Place

Alternatively, via email:


or phone: 01273 229410

We look forward to welcoming you.