London hospital and Sheffield clinic affected by faulty egg-freezing products

Guy's hospital and Sheffield clinic may have used faulty freezing solution that could damage eggs and embryos

Scores of women have been affected by the use of a faulty freezing solution at fertility clinics in London and Sheffield, with frozen eggs and embryos potentially destroyed as a result, the fertility regulator has said.

The Human Fertilisation and Embryology Authority (HFEA) confirmed the issue was limited to Guy's and St Thomas' assisted conception unit in London, and Jessop Fertility in Sheffield.