Book Your LH Blood Test (Luteinizing Hormone)

Because your health matters.

The Luteinizing Hormone (LH) Blood Test is used to investigate problems with fertility or the menstrual cycle and is a crucial hormone useful in diagnosing pituitary gland and gonadal disorders.

Our LH Blood Test is a quick, easy and accurate way to check on your reproductive health and fertility. The test can be added to any of our full body health check packages.

Explore our packages and book online today.


  • 1.

    Fast, accurate results

  • 2.

    Competitively priced testing within 20 minutes of your home

  • 3.

    Detailed, personalised Results Report

  • 4.

    Access to our 24/7 GP service with all test packages

How it works

How it works

1. Select and book your package

View our health test packages and book a full body private health check. All our individual tests can be added to any of our private health check packages. Just call our team on 0800 652 2183 before your appointment to add an extra test.

2. Make an appointment

Choose the venue, date and time that suits you. With over 2000 appointments available nationwide every week, you're sure to find a convenient time, date and venue.

3. Attend your appointment

A trained phlebotomist will carry out your assessment. The whole process only takes around 20 - 30 minutes.

4. Fast, accurate results within 8 days

Within around 8 days, you'll receive your personalised digital Results Report.

What is an LH Blood Test?

An LH Blood Test is used to check how well your reproductive system functions, providing insights into factors that may affect fertility and conception.

The LH Blood Test measures the amount of luteinising hormone in the blood to determine fertility status and if there are any reproductive health concerns to be addressed. LH is often used in conjunction with other tests (FSH, testosterone, oestradiol and progesterone) in the investigation of infertility in both men and women.

The LH Blood Test is commonly used to help detect:

  • Menopause
  • Testicular failure
  • Ovarian failure
  • Pituitary disorders
  • Polycystic Ovary Syndrome (PCOS)

An LH Test is a quick and easy way to get to know your body’s luteinising hormone level, determining your fertility status and reproductive health.

What is LH in a Blood Test?

Produced by the pituitary gland in the brain, Luteinising hormone (LH) controls the function of the sex organs (ovaries or testes). In women, LH is released into the bloodstream to instruct the ovaries to release an egg. In men, LH affects the production of testosterone. When testing for levels of LH in the blood, we can see whether the testes in men and ovaries in women are functioning normally.

Why take an LH (Luteinising Hormone) Test?

An LH Blood Test can help to detect the causes of reproductive and fertility issues. It is recommended to take an LH Blood Test should you be concerned about your fertility status or reproductive health.

The LH Blood Test is commonly used if you experience any of the following:

  • Irregular or absent periods
  • Difficulty trying to conceive
  • To check fertility in both men and women

An LH Test is a quick and easy way to know how well your reproductive system is functioning, indicating if you have any hidden fertility issues or undiagnosed conditions.

What does an LH Blood Test involve?

A blood sample will be taken, using a small needle, from a vein in your arm. The small sample of blood is then collected into a test tube. The test is painless, though you may feel a slight sting when the needle is inserted and taken out. The whole process typically takes less than five minutes. After the blood is drawn into a vial, the blood sample is sent to a laboratory for testing.

Ways in which you should prepare for the test:

  • Refrain from taking the supplement biotin for 72 hours before the LH Blood Test.
  • Drink plenty of water prior to the test to help with the collection of blood.
  • If you have been prescribed anticoagulant medication, take this after the test and not before.
  • Wear loose clothing to provide easy access for the blood draw.

Private health checks for complete peace of mind

Our full body private health checks are designed for busy people who want to take control of their health. Our tests are quick, accurate, convenient and completely stress-free. No waiting for an appointment, no invasive procedures, no embarrassing questions, no long travel times and no busy waiting rooms.

Trained phlebotomists carry out all tests in over 350 venues across the UK and Ireland, so you get accurate professional health checks within 20 minutes of your home. Our private health checks include all the tests you need to take a proactive approach to monitoring and improving your health.

Any individual tests can be added to any full body health check. Just book one of our full body private health assessments and call us before your appointment to add an extra test.

Need help? Call free on

0800 652 2183 to speak to one of our team.


A LH Blood Test measures the levels of luteinising hormone in the bloodstream. Healthy levels of LH are associated with the proper functioning of the reproductive system. An LH Blood Test can determine if there are any underlying fertility issues or health conditions. When trying to conceive, an LH Blood Test can be helpful in getting an overall impression of your fertility and reproductive health status.
A LH Blood Test can help to detect the following issues and health conditions: ? Pituitary disorders ? Hypothalamic disorders ? Testicular failure ? Ovarian failure ? Onset of menopause ? Polycystic Ovary Syndrome (PCOS) ? Fertility ? Difficulty conceiving If the results of an LH Blood Test are outside of the healthy range, additional tests are performed to determine the cause.
Full preparation instructions will be provided in writing when you book your appointment.
For women, should your LH Blood Test show high levels of luteinising hormones throughout the month, this could indicate dysfunction of the ovaries. Normally LH levels rise and fall at different times of the menstruation cycle. Typically, a surge of LH two weeks after menstruation suggests that the ovaries function normally. Consistently high or low results could indicate an underlying pituitary disorder or that the reproductive organs are not working as they should. In men, a high LH level combined with a low testosterone level could be a sign that the testes are not producing adequate amounts of testosterone. On the other hand, low LH levels indicate that the pituitary gland is not making sufficient LH, which can also negatively affect fertility.
There is no need to fast before the LH Blood Test. However, if taking the supplement biotin, you should refrain from taking this for 72 hours before the LH Blood Test.