Clarilab

Hormones

LH test

Also called luteinizing hormone

A brain hormone that triggers ovulation.

Typical range
Day 3 of cycle about 2–10 mIU/mL.

Why it's done

Fertility and PCOS checks, with FSH.

What a high result can mean

An LH much higher than FSH is common in PCOS; also high at menopause.

Got a report with LH?

Upload the PDF to Clarilab: it reads the values in your browser, flags anything out of range and tracks your results over time.

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Included in these checkups

Women's health and PCOS

More hormones tests

ProlactinThe hormone that makes breast milk. FSHA brain hormone that drives egg and sperm production. AMHA hormone from small follicles in the ovaries; an estimate of egg reserve. TestosteroneThe main male hormone; women make small amounts. Estradiol (E2)The main female hormone. CortisolThe stress hormone from the adrenal glands.