What is FSH?
your pituitary's fertility signal
FSH stimulates the ovaries or testes to produce sex hormones and germ cells. The value is central to fertility and menopause assessment.
FSH rises at menopause as ovarian production drops. In men, high FSH can suggest testicular dysfunction.
Test facts
- Unit
- IE/L
- Sample
- Serum
- Fasting
- No fasting needed
- Turnaround
- 2 days
What does low FSH mean?
Low FSH can suggest pituitary disease or hormone therapy.
What does high FSH mean?
High FSH in late reproductive years is consistent with perimenopause or menopause.
Panels that measure FSH
- Female Annual
- Female Hormones
- Hormone+
- Perimenopause
- Pre-Conception
More markers in the same area
Launching in Stockholm in 2026.
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This is general information about the marker, not an assessment of your values and not medical advice. Last updated: May 2026.