No fasting required. Day 2–5 of menstrual cycle for baseline fertility assessment; day 21 for luteal phase; morning preferred Results arrive in 3 to 5 business days, explained in plain language in your dashboard. Most results sit within the usual range - that is still useful, and anything unexpected supports a conversation with your healthcare practitioner.
Targeted Testing
LH
The hormone that triggers ovulation, and reveals the reproductive axis
$65one-off, no subscription
NATA-accredited pathology
No GP referral needed
Results in 3 to 5 business days
Collect at 1,900+ centres
Why this test
LH is the hormone that triggers ovulation in women and testosterone production in men.
Luteinising hormone (LH) is released by the pituitary gland and plays a central role in the reproductive axis. In women, an LH surge triggers ovulation — monitoring LH can help understand cycle regularity and fertility status. In men, LH stimulates the testes to produce testosterone. Abnormal LH levels may point to pituitary, hypothalamic, or gonadal dysfunction.
Understanding your results
Within reference range
Interpretation is cycle-phase and sex-dependent — your healthcare practitioner can advise on context
Low-normal
Within range — interpretation varies with cycle phase and sex
Below reference range
Low LH may suggest pituitary or hypothalamic involvement — discuss with your healthcare practitioner
Elevated
Elevated LH may reflect menopause, PCOS, or primary gonadal insufficiency — discuss with your healthcare practitioner
Reference ranges vary by laboratory and personal context. Your result is shown against the lab's range in your dashboard, alongside what it means.
How it works
1
TODAY
Order online
Pick a test or panel and check out. No GP referral, no waiting room.
2
THIS WEEK
One quick visit
Walk into one of 1,900+ NATA-accredited collection centres. A single blood draw is all it takes.
3
IN 3 TO 5 BUSINESS DAYS
Clear results
We translate your results into plain language in your dashboard - what each marker means, and what is in range.
4
ONGOING
Track over time
Retest when it matters and watch your trends, so you can see what is actually changing.
Yes. You can order the LH test online from Clarity Labs without a GP referral. It's $65, collected at any of 1,900+ NATA-accredited centres across Australia, with results in 3 to 5 business days via your secure online dashboard.
The LH test is $65 at Clarity Labs, a one-off price with no subscription or membership. That covers your pathology request form and collection at any of 1,900+ NATA-accredited centres nationwide.
For a baseline fertility assessment, day 2–5 of your cycle (counting from the first day of your period) is standard. Your healthcare practitioner may request testing at other cycle points depending on what they are investigating.
Yes. In men, LH stimulates testosterone production. Low LH alongside low testosterone may suggest a central (pituitary) cause of low testosterone, which is important for treatment decisions.
No fasting is required.
For fertility investigation, your healthcare practitioner will advise on timing within your cycle — frequency matters less than the right cycle day. For ongoing hormone monitoring, annually or as directed.
NATA-accredited pathologyCollected through Sonic Healthcare1,900+ collection centresNo GP referral needed
This information is for general education and is not medical advice, diagnosis, or treatment. Results are best interpreted with a qualified healthcare practitioner in the context of your symptoms and history.
