LH & FSH Fertility Test

Test ID: B-204 | Sample Type: Dried Blood Spot | Test Method: Immunoassay | Results: 3–5 Working Days | Laboratory: ZRT Laboratory – CLIA Certified | Report: Specialist Doctor Comment Included | Suitable For: Adults | Collect Sample At Home: No Clinic Visit Required

What This Test Measures

LH (Luteinising Hormone) – Regulates ovulation in women and testosterone production in men

FSH (Follicle Stimulating Hormone) – Controls follicle development and egg maturation in women; sperm production in men

Follicle-Stimulating Hormone (FSH) Ranges

Unit: U/L

Luteinizing Hormone (LH) Ranges

Unit: mಂತIU/mL

Are Fertility or Hormonal Issues Leaving You Without Answers?

LH and FSH are two of the most important hormones in reproductive health — for both women and men. Imbalances can affect ovulation, sperm production, menstrual cycles, and fertility. If you recognise any of the following, this test could provide the clarity you need:

In women:

• Difficulty conceiving or unexplained infertility
• Irregular, infrequent, or absent periods
• Symptoms of perimenopause or early menopause — hot flushes, night sweats, mood changes
• Suspected PCOS (polycystic ovary syndrome)
• Low sex drive or hormonal imbalance
• Preparing for IVF or assisted reproduction
• Concerns about ovarian function or ovulation

In men:

• Low sperm count or poor sperm quality
• Difficulty conceiving with a partner
• Low testosterone symptoms — fatigue, low libido, reduced muscle mass
• Suspected hypogonadism or testicular dysfunction
• Unexplained infertility investigation

What Are LH and FSH and Why Do They Matter?

Luteinising Hormone (LH) and Follicle Stimulating Hormone (FSH) are produced by the pituitary gland and are central to reproductive function in both sexes.

In women:

• LH triggers ovulation — the LH surge signals the release of an egg; elevated LH can indicate PCOS or menopause; low LH may mean ovulation is not occurring
• FSH stimulates follicle development in the ovaries; high FSH often indicates diminished ovarian reserve or menopause; low FSH may suggest a pituitary or hypothalamic issue

In men:

• LH stimulates testosterone production in the testes; low LH can lead to hypogonadism and reduced sperm production
• FSH regulates sperm production (spermatogenesis); abnormal FSH is a key indicator of male fertility issues

Testing LH and FSH together gives a comprehensive view of your reproductive hormone axis and helps identify whether fertility challenges are hormonal in origin.

Who Should Consider This Test?

• Difficulty conceiving or unexplained infertility — women or men
• Irregular, infrequent, or absent periods
• Suspected PCOS, perimenopause, or early menopause
• Low testosterone symptoms in men — fatigue, low libido, reduced muscle mass
• Suspected hypogonadism or testicular dysfunction
• Preparing for or monitoring fertility treatment including IVF
• Assessing ovarian reserve or ovulation status

How It Works

1. Order your kit — delivered to your door
2. Collect your sample at home — a simple finger-prick dried blood spot; no clinic or GP visit needed; cycle timing guidance is included for women
3. Post your sample to ZRT Laboratory using the return instructions provided
4. Receive your results by email within 3–5 working days of the lab receiving your sample

What You Receive

• LH and FSH levels displayed clearly in graphics and numbers with life-stage-specific reference ranges
• Written interpretation by a Hormone Specialist PhD Doctor
• Guidance on what your results mean and what to do next
• Laboratory fee included — no hidden charges

Why We Use ZRT Laboratory

All testing is performed by ZRT Laboratory — a globally recognised, CLIA-certified diagnostic laboratory founded in 1998 by Dr. David Zava, PhD. ZRT has performed over 11 million tests and is trusted by healthcare professionals in 96+ countries.

Frequently Asked Questions

When should women collect their sample?
For assessing ovarian reserve and baseline FSH, Day 2–3 of your menstrual cycle (the early follicular phase) is optimal. For ovulation assessment, the mid-cycle LH surge period is most informative. Full timing guidance is included in your kit.

Can men use this test?
Yes. LH and FSH are essential markers of male reproductive and hormonal health. Abnormal LH or FSH in men can indicate hypogonadism, testicular dysfunction, or the cause of low testosterone or poor sperm production.

Does the price include the laboratory fee?
Yes. The full laboratory analysis fee is included. You are only responsible for posting your sample to the laboratory.

How long is the kit valid for?
The kit must be used within 12 months of the purchase date.