Lab marker · High

High Luteinizing Hormone (LH): what it means

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

Reference range: Men 1.7–8.6 mIU/mL; women follicular 1.9–12, ovulation 8–76, luteal 0.5–17, postmenopausal 14–53

Understand your full result

What a high Luteinizing Hormone (LH) can mean

  • Menopause / premature ovarian insufficiency — high LH + high FSH + low estradiol.
  • Polycystic ovary syndrome (PCOS) — LH:FSH ratio often >2:1.
  • Primary testicular failure — Klinefelter's, post-mumps, post-chemotherapy.
  • Mid-cycle ovulatory surge — physiological, normal in fertile women.
  • GnRH agonist therapy (paradoxical early phase) — therapeutic.

When to discuss with a doctor

LH is rarely interpreted alone — always paired with FSH, testosterone (men) or estradiol (women), and prolactin. Specific contexts: woman with absent periods, suspected PCOS, infertility, premature menopause; man with low testosterone, infertility, suspected pituitary disease. Mediora.AI shows LH next to FSH and the gonadal hormone so the pattern (primary vs central) is visible; reproductive workup is endocrinology / gynaecology / andrology territory.

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.