Luteinising Hormone

Check your luteinising hormone (LH) levels with a convenient at-home blood test. LH plays a key role in fertility, ovulation, and reproductive health.

🔍 What Is Luteinising Hormone?

Luteinising hormone (LH) is a hormone produced by the pituitary gland, located at the base of the brain. In women, LH works alongside follicle-stimulating hormone (FSH) to regulate the menstrual cycle, trigger ovulation, and support reproductive function.

LH levels naturally fluctuate throughout the cycle, rising sharply in the middle of the cycle to cause the release of an egg from the ovary — a process known as the LH surge.

In men, LH stimulates the production of testosterone in the testes, which is essential for sperm production and sexual function.

✅ Why Take a Luteinising Hormone (LH) Test?

An LH test is commonly used to assess:

• Ovulation and fertility issues
• Irregular or absent periods
• Symptoms of Polycystic Ovary Syndrome (PCOS)
• Early or delayed puberty
• Menopausal status
• Pituitary gland function

Monitoring LH levels can help diagnose reproductive disorders, guide fertility treatment, and provide insights into your hormonal balance.

👩‍🦰 Who Should Take This Test?

You may benefit from an LH blood test if you are:

• Trying to conceive and unsure if you’re ovulating
• Experiencing irregular, missed, or unusually short/long menstrual cycles
• Diagnosed with or suspecting PCOS
• Approaching or undergoing menopause
• Showing signs of a pituitary gland issue
• Monitoring testosterone production (in men)

For fertility purposes, this test is often done alongside FSH and Oestradiol (E2) for a more complete hormone profile.

🩸 What’s Included in the Test?

This at-home Luteinising Hormone test includes:

• Easy-to-use finger-prick blood collection kit
• Prepaid return envelope to our UK lab
• Full lab analysis of LH levels
• Doctor-reviewed, personalised result report
• Optional follow-up consultation available

📦 How the LH Blood Test Works

1. Order online – We’ll send you a discreet, secure test kit
2. Collect your sample – Use the finger-prick device and blood collection tube
3. Return to lab – With prepaid, tracked postage
4. Receive results online – Secure, doctor-reviewed results within 2–3 working days

📊 What Do LH Levels Mean?

🔼 High LH Levels May Indicate:

• Ovulation (if mid-cycle)
• Polycystic Ovary Syndrome (PCOS)
• Premature ovarian insufficiency or menopause
• Turner syndrome
• Testicular failure (in men)

🔽 Low LH Levels May Suggest:

• Pituitary or hypothalamic disorders
• Extreme stress, underweight, or excessive exercise
• Amenorrhoea (absence of periods)
• Delayed puberty
• Hormonal contraceptive suppression

🧠 The Role of LH in the Menstrual Cycle

LH levels fluctuate in a predictable pattern:

• Follicular phase (days 1–13): LH is low to moderate
• Ovulation (around day 14): LH spikes suddenly, triggering the release of an egg
• Luteal phase (days 15–28): LH drops back down

Measuring LH at the right point in your cycle is crucial for accurate interpretation. We’ll guide you on the best time to collect your sample based on your cycle phase or symptoms.

🧬 LH and PCOS

Women with PCOS often have elevated LH levels relative to FSH, contributing to anovulation (lack of egg release), irregular cycles, and hormonal imbalance. An LH:FSH ratio greater than 2:1 is a common marker for PCOS.

Testing LH can therefore help confirm or rule out PCOS, especially when combined with other hormones like testosterone, insulin, and oestradiol.

👨‍⚕️ LH in Men

In men, LH stimulates the Leydig cells in the testes to produce testosterone. Measuring LH can help diagnose causes of:

• Low testosterone
• Infertility
• Testicular failure
• Delayed or precocious puberty

Abnormal LH levels in men may point to problems with the pituitary gland or testes.

🔄 When Should I Take This Test?

For most accurate results:

• Women: Test on day 3 of your menstrual cycle (or as advised)
• Irregular cycles: You can test anytime, but provide cycle information
• Men: You can test at any time of day

🛒 Why Choose Our At-Home LH Test?

• ✔ Discreet and easy home testing
• ✔ UKAS-accredited laboratory analysis
• ✔ Results in 2–3 business days
• ✔ Expert doctor interpretation
• ✔ Free delivery and return shipping
• ✔ No GP referral needed

💬 Frequently Asked Questions (FAQs)

Do I need to be fasting for this test?
No. Fasting is not required for LH testing.

Is this the same as an ovulation predictor test?
Not quite. Ovulation predictor kits (OPKs) use urine to detect the LH surge, while this blood test measures precise LH levels at a specific point in your cycle for diagnostic purposes.

Should I test more than once during my cycle?
One test may be sufficient, depending on your goal. For ovulation tracking, some women test multiple times. For hormone imbalance diagnosis, a single day-3 test is usually enough.

Can I combine this with other hormones?
Yes. We recommend pairing LH with FSH, Oestradiol, Prolactin, or a full female hormone panel for a more complete picture.

📥 Order Your LH Test Today

Take control of your fertility and hormonal health. Whether you’re planning a pregnancy, managing symptoms of PCOS, or simply checking your cycle, this at-home Luteinising Hormone (LH) Test gives you fast, reliable insights—without needing a clinic visit.

Fast UK delivery | Accredited lab | Fertility peace of mind