Fertility testing
Oestradiol (E2) rises as follicles grow. Clinics may measure it alongside scans during stimulation to judge response and help assess OHSS risk. A single value is interpreted in context by your clinic.
Also known as: estradiol, E2, oestradiol blood test
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.