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Understanding infertilty

Infertility is more common than most people realise and it can be caused by many different things whether you’re male or female.

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The causes of infertility

We welcome everyone into our clinic regardless of age and medical history and explore every avenue as a collective of Fertility Specialists. Leaving no stone unturned at any stage of the journey, we go further than any other clinic to fulfil your dream of parenthood.

Before embarking on any fertility treatment, the first and crucial step is understanding your fertility health and ability to conceive with a thorough assessment of you and your partner. Together with any medical history, a fertility check-up provides a good insight to the reasons you are not conceiving, we may recommend further tests if the first line tests do not provide a definitive diagnosis.

Reduce the risk of recurrent miscarriages

One of the main reasons an embryo results in miscarriage is a genetic (chromosomal) abnormality. However, with PGT-A we can ensure only transfer chromosomally normal embryos are transferred back into you, and thereby increase your chances of and reduce your time to a successful pregnancy.
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Success after IVF failures

If you’ve been told by other clinics just to “try another cycle”. This isn’t always the best answer. It may just result in further costs and further heartache. We can help: using state-of-the-art diagnostic tools and advanced analysis to find and treat the specific issues that could be preventing you from conceiving or carrying the baby to full term.
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Exploring reproductive immunology

If you’ve experienced recurrent miscarriage, implantation failure or unexplained treatment failure, where no other cause is obvious, we may recommend immunology testing. This is to make sure your immune system is promoting – and not rejecting – your pregnancy.

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Endometrial receptivity (ERA, EMMA and ALICE)

If you’ve experienced recurrent miscarriage, implantation failure or unexplained treatment failure, where no other cause is obvious, we may recommend endometrial receptivity testing. This is to make sure your uterus lining (endometrium) is receptive and has a supportive bacterial population for embryo implantation and development.

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Genetic testing

Genetically testing your embryos before implantation in your womb can increase your chances of a healthy pregnancy. We generally recommend PGT-A (checking for chromosomal abnormalities) to all patients to maximise your chance of success and reduce your time to pregnancy. Preimplantation genetic testing is especially useful where the maternal age is higher or there is a family history of a genetic condition.

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Fertility preservation

There are many social and medical reasons why you might want to preserve your fertility for the future and we can safely freeze your eggs or sperm at our clinic until you’re ready to start a family. We are proud to have the market -leading all-inclusive packages available.

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Patient entering 134 Harley Street, Fertility Clinic

Are you over 40?

Although fertility treatment at an older age comes with its own challenges it should never be a deterrent to starting a family. We pride our reputation on always having treatment options available and use the collaborative expertise of our entire fertility team to give you the highest chance of success. It’s why our pregnancy rate for women over 37 is more than double the national average and we have the highest pregnancy rate for over 40s in the UK.

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How's your fertility health?

With 1 in 6 people facing infertility, it's time to embark on your fertility journey by taking the first steps and assessing your fertility health.


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Harley Street Fertility Clinic fertility specialists- doctors, nurses, embryologists

Meet the team

Understanding your causes for fertility can be very empowering. It can be the start of a different and resolution path. Our Fertility Team are happy to talk to you about the treatments we offer and how we can help in a free 20-minute appointment.
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A couples distressed, the woman's head resting on the male's shoulder.

Have you been told by other clinics just to try another cycle?

Although the journey to parenthood is rarely straightforward, the physical and financial burden of recurrent implantation failures or miscarriages can take their toll. However, you’re not alone. As many as 1 in 6 couples have fertility issues that stay undiagnosed until the right tests reveal what’s really going on. Many clients will offer 3 cycle financial packages.

At Harley street Fertility Clinic we are focused on getting the RIGHT treatment path FIRST time. That’s why we’re focused on understanding your unique fertility health before embarking on another cycle. Using state-of-the-art diagnostic tools and advanced analysis, we can find and treat the specific issues that could be preventing you from conceiving.

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