Embryology
Total fertilisation failure is uncommon but very distressing. Your clinic should review possible reasons — egg, sperm or laboratory factors — and discuss options such as ICSI or other approaches in a future cycle.
Also known as: failed fertilisation, TFF, fertilisation failure
Related United Kingdom guides
Sources
Last reviewed: 23 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.