Hormones · Ovulation trigger
Men Women (soon)
Luteinizing hormone surges 24–36 hours before ovulation. The LH:FSH ratio is the clinical signature of PCOS (typically >2:1 in PCOS, ~1:1 in normal cycles).
Optimal range
2–10 (cycle day 3)IU/L
Avg. cost (US)
$45
Test frequency
Day-3 annually; mid-cycle as needed
When to measure
Day 3 for baseline + LH:FSH ratio. Mid-cycle (~day 12–14) to catch the ovulatory surge if assessing ovulation.
How to measure
Serum immunoassay; urine LH strips for at-home ovulation tracking.
Average cost
≈ $45 cash price. Often covered by insurance with relevant ICD-10.
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