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Fertility Glossary

Hypothalamic amenorrhoea

Periods stop because the brain reduces its hormone signals to the ovaries.

Menstrual cycle & ovulation

Often linked with low energy availability, low body weight, intense exercise or significant stress, hypothalamic amenorrhoea leads to low FSH and LH and no ovulation. Restoring energy balance may help, and specialist treatment can induce ovulation when appropriate.

Also known as: HA, hypothalamic amenorrhea, functional hypothalamic amenorrhoea

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.

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