Lab marker · High

High Follicle-Stimulating Hormone (FSH): what it means

A Follicle-Stimulating Hormone (FSH) result above the normal range is considered high. Here is what a raised Follicle-Stimulating Hormone (FSH) can point to, and when it is worth discussing with a doctor.

Reference range: Men 1.5–12.4 mIU/mL; women follicular 3.5–12.5, ovulation 4.7–22, luteal 1.7–7.7, postmenopausal 25–135

Understand your full result

What a high Follicle-Stimulating Hormone (FSH) can mean

  • Menopause — early-follicular FSH ≥25 mIU/mL (often >40); paired with absent periods >12 months.
  • Diminished ovarian reserve — FSH rising year-on-year in a still-cycling woman; predicts shorter reproductive window.
  • Primary ovarian insufficiency (premature menopause) — high FSH under age 40.
  • Primary testicular failure — Klinefelter, post-orchitis, post-chemo; FSH typically higher than LH.
  • Turner syndrome, Swyer syndrome — gonadal dysgenesis.

When to discuss with a doctor

FSH is the standard screen for menopause and ovarian reserve, paired with LH and (if appropriate) estradiol + AMH. A rising trend in a woman in her 30s–40s is more informative than a single number. In men, isolated high FSH with normal testosterone often surfaces from an infertility workup. Mediora.AI shows FSH next to LH so the pattern is visible; reproductive workup belongs with an endocrinologist, gynaecologist or fertility specialist.

Conditions this can relate to

Keep reading

One value is a snapshot. Upload the full test to see every marker explained together.

Upload your test - free

Mediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.