Male Fertility Blood Tests

Our fertility tests for men assess the hormones involved in sperm production, including testosterone, luteinising hormone (LH), follicle-stimulating hormone (FSH), and prolactin. Selected tests also measure biomarkers that can affect fertility, such as vitamin D, thyroid function, and general health markers.

Sort By
Clarity for your fertility journey
Male Fertility IQ Blood Test

Planning on starting a family and wondering whether your hormones could be playing a role? The Male Fertility IQ Test measures key reproductive hormones alongside thyroid, iron, vitamin and mineral markers to give you a clearer picture of factors that may be relevant when try...

  • Results estimated in 4 working days
  • 15 biomarkers
£129.00
Zika Virus Antibodies Blood Test (Flavivirus)

Recently travelled to a Zika-affected area or planning pregnancy? This test detects Zika virus IgM and IgG antibodies, helping assess recent or past exposure

  • Results estimated in 14 working days
  • 2 biomarkers
£189.00
Erectile Dysfunction Blood Test

Investigate the potential causes of erectile dysfunction (ED) with a simple blood test

  • Results estimated in 3 working days
  • 10 biomarkers
£85.00
Chlamydia and Gonorrhoea Urine Test

Have no symptoms but want a quick and discreet STI check? This urine test detects two of the most common STIs — chlamydia and gonorrhoea

  • Results estimated in 4 working days
  • 2 biomarkers
£59.00
Young woman with long dark hair is smiling and looking at the camera.
“If you’re keen to understand more about your reproductive health, our male fertility tests can help assess key hormones involved in fertility and sperm production. They can also provide insight into symptoms like erectile dysfunction and low libido.”

Dr Tina Ghela, Head of Clinical, Medichecks

Signs you might benefit from a male fertility test

A fertility blood or sperm test may be worth considering if:

  • You've been trying to conceive for 12 months without success (or six months if your partner is over 35).
  • You have a low sex drive, erectile dysfunction, or reduced morning erections.
  • You've noticed reduced muscle mass, fatigue, or other symptoms of low testosterone.
  • You have irregular puberty, a history of undescended testes, or previous testicular injury.
  • You're considering a semen analysis and want a more complete assessment of your reproductive health.
Which male fertility test should I choose?

The right test depends on what you're hoping to understand.

  • You're trying to conceive: A comprehensive fertility profile measures the key hormones involved in sperm production and reproductive function.
  • You have symptoms of low testosterone: Choose a broader hormone profile that measures testosterone alongside FSH, LH, prolactin, and oestradiol to investigate hormone-related causes of fertility problems.
  • You want the most complete picture: Comprehensive health profiles combine fertility hormones with biomarkers such as thyroid function and metabolic health, as overall health can influence fertility.
How to improve sperm count

If you want to improve your sperm count, lifestyle changes can make a meaningful difference for some men, particularly when sperm quality is affected by modifiable factors.

Evidence-based ways to support sperm health include:

  • Maintaining a healthy weight.
  • Exercising regularly without excessive overtraining.
  • Stopping smoking and limiting alcohol.
  • Managing long-term medical conditions.
  • Eating a balanced diet rich in fruit, vegetables, whole grains, healthy fats, and protein.
  • Correcting nutritional deficiencies where appropriate.
  • Avoid using anabolic steroids unless medically prescribed.
  • Keeping the testes cool by avoiding prolonged heat exposure where possible.

    If hormone levels are abnormal, identifying and treating the underlying cause may also improve fertility.

    For more information, read our guide to sperm health.

FAQs

What's the best male fertility test?

A comprehensive male fertility test measures the hormones involved in sperm production, including testosterone, FSH, LH, prolactin, and oestradiol. Depending on your symptoms, additional health markers may also be helpful.

Can a blood test check male fertility?

A blood test can't measure sperm count directly, but it can assess hormone levels that regulate sperm production and identify conditions that may contribute to fertility problems. A semen analysis remains the primary test for assessing sperm count and quality.

Can low testosterone cause infertility?

Yes. Testosterone plays an important role in sperm production, but both low testosterone and TRT can affect fertility. That's why hormone testing should always be interpreted in the context of your symptoms and reproductive goals.

When should I have a fertility blood test?

A fertility blood test may be appropriate if you've been trying to conceive without success, have symptoms of low testosterone or a history of testicular problems, or simply want to investigate possible hormone-related fertility issues.

Do both partners need fertility testing?

Fertility problems can affect either partner, and around half of couples having trouble conceiving have a male factor contributing to infertility. Assessing both partners often provides the clearest understanding of the cause. Our Male Fertility IQ Blood Test and Female Fertility IQ Blood Test were designed to be taken as a couple.

Is semen analysis better than a blood test?

They answer different questions. A semen analysis measures sperm count, movement, and shape, while a blood test assesses the hormones that regulate sperm production. They're often used together as part of a comprehensive fertility assessment.