Question to the Department of Health and Social Care:

To ask His Majesty's Government, of the human eggs (oocytes) harvested between 2014 and 2019, how many of the fertilised eggs produced viable embryos suitable for uterine transfer; and how many embryos were transferred to the uterus for the purpose of producing a baby.

The following table shows the number of embryos created and transferred from patients’ own thawed eggs from 2014 to 2019.

Source: The Human Fertilisation and Embryology Authority (HFEA)

Notes:

1. Due to the way data is stored, the HFEA has advised that it cannot easily link egg storage cycles with a high degree of accuracy. Data is therefore provided as total embryos created or transferred within the required period, rather than a subset of eggs stored.

2. The data is as shown on the HFEA’s register database on 20 October 2022. This is a live database so these figures reflect the data on this day and are likely to change over time. Data shown includes only treatments using patients own thawed eggs.