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Fertility Glossary

Diminished ovarian reserve

Fewer eggs remaining than expected for your age.

Female fertility

Diminished ovarian reserve means the number of eggs left in the ovaries is lower than average for the person's age, usually suggested by a low AMH, a low antral follicle count or a raised early-cycle FSH. It affects how many eggs a stimulation cycle is likely to produce, but it is a measure of quantity rather than a direct measure of egg quality, and it does not mean pregnancy is impossible.

Also known as: DOR, low ovarian reserve, low egg reserve, low AMH

Sources

  • ESHRE guidelines and patient information

Last reviewed: 8 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.

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