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Fertility Glossary

Ovarian response

How many follicles and eggs develop during stimulation.

Treatment

Ovarian response describes what happens during a stimulation cycle: the number of follicles growing and the eggs eventually collected. A poor response may prompt a change of protocol or dose next time; a very high response raises OHSS risk and may lead to a freeze-all. Response reflects ovarian reserve more than egg quality.

Also known as: response to stimulation, poor responder, high responder

Sources

  • European Society of Human Reproduction and Embryology (eshre.eu)
  • Royal Australian and New Zealand College of Obstetricians and Gynaecologists (ranzcog.edu.au)

Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only โ€” always follow the advice of your own clinic, doctor or pharmacist.

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