Fertility Library

What does an AMH test tell you about fertility?

Understand AMH, ovarian reserve and why one number cannot predict natural conception.

What AMH measures

Anti-Müllerian hormone (AMH) is produced by cells in small ovarian follicles. It is used as one indicator of ovarian reserve and may help clinicians plan ovarian stimulation during fertility treatment. It does not measure egg quality directly.

What a result cannot tell you

A low AMH result does not prove that pregnancy is impossible; a high result does not guarantee pregnancy. AMH alone is not a reliable prediction of natural conception, and values need to be interpreted alongside age, clinical history and the laboratory's methods.

When further assessment might help

Depending on the circumstances, a clinician may review menstrual patterns, ovulation, ultrasound findings and other investigations. Do not make decisions about pregnancy or treatment from AMH alone.

Questions worth asking

Ask why the test was ordered, whether the result changes management, how the reference interval was determined and whether any other findings need follow-up.

Explore a clearer next step

Fertility Barrier Finder can help organise your history and highlight possible areas and investigations to discuss with a qualified healthcare professional. It cannot diagnose a fertility condition, confirm a barrier or predict pregnancy.

More fertility guides

What does an AMH test tell you about fertility? · Fertility hormone blood tests: FSH, LH, oestradiol, prolactin and thyroid · Irregular periods and ovulation: what might be worth checking? · Male fertility tests: when might more than a semen analysis be needed? · When should you seek fertility advice? Age, timing and other reasons · A fertility investigation checklist for couples: where to begin · Unexplained infertility: what does it mean and what happens next?

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