What is male factor infertility?
Male factor infertility means there's something about the sperm, or the way sperm is produced or released, that makes it harder to conceive. That might be a lower sperm count, sperm that don't move as well as they could, or sperm with an unusual shape. Sometimes it's a mix of all three.
It's more common than many people realise. According to the Human Fertilisation and Embryology Authority (HFEA), sperm-related issues are the cause for around half of heterosexual couples who are having problems conceiving. And because it rarely comes with obvious symptoms, plenty of people only find out once they start asking questions.
Male factor infertility isn't only relevant to couples, either. If you're a single man or part of a same-sex male couple planning a family through surrogacy, or a trans or non-binary person thinking about using your own sperm, understanding your sperm health is a useful first step. Whatever your situation, a diagnosis isn't the end of the road; it's what helps us find the right route forward with you.
AROUND HALF
of heterosexual couples who are having problems conceiving have a sperm-related cause.
Source: HFEA
Charlie and Tom's story
When the diagnosis is yours
Tom was diagnosed with low sperm morphology, and one of the hardest parts of treatment was watching his wife, Charlie, go through IVF knowing his results were part of the picture. In this short clip, he talks openly about the guilt that came with that, and how it affected him.
"There's this guilt that creeps in."
Tom
If any of that sounds familiar, you're not on your own. A lot of men feel this way, and it's something our counselling and support team can help you talk through.
Read Charlie and Tom's full storyWhat causes male factor infertility?
There isn't always a single, clear-cut reason, and the NHS notes that many cases of abnormal semen are unexplained. Where a cause can be found, it usually falls into one of these areas.
The vas deferens is the tube that carries sperm from the testicles. If it's blocked, missing from birth, or has been cut during a vasectomy, sperm can't make it into the semen, even when the testicles are producing it perfectly well.
Because the testicles produce and store sperm, anything that affects them can affect fertility. That includes past infections, injury, surgery, undescended testicles, and treatment for testicular cancer.
Sperm production relies on hormones, including testosterone. Abnormally low testosterone (hypogonadism) can reduce sperm production, and some genetic conditions, such as Klinefelter syndrome, can affect fertility too.
Chemotherapy can severely reduce sperm production, which is why we offer sperm freezing before cancer treatment. Long-term anabolic steroid use, some prescription medicines, and recreational drugs can all affect sperm. Smoking, drinking above recommended limits, and a body mass index (BMI) of 30 or over are also linked to lower fertility, and a higher temperature around the scrotum is associated with lower semen quality.
Some men find it difficult to get or keep an erection (erectile dysfunction), or to release semen during sex. Either can make conceiving through sex harder, even when sperm quality is good. Erectile dysfunction is common and often treatable, so it's worth raising with your GP or our team rather than keeping it to yourself. If you're having fertility treatment, we'll talk you through how your sample can be collected in a way that works for you.
Signs and symptoms
For most men, the only sign is that pregnancy hasn't happened yet. Sperm count, movement, and shape can't be seen or felt, so you can feel completely well and still have results that affect your chances of conceiving.
The NHS suggests seeing your GP if you haven't conceived after a year of trying, or sooner if you already know there may be a fertility issue. You don't need a referral to come to us, though, and testing early simply means you'll have answers to work with.
It's worth getting checked sooner if you've had:
a vasectomy, or a vasectomy reversal
surgery, injury, or infection affecting the testicles or groin
undescended testicles as a child
chemotherapy or radiotherapy
long-term use of anabolic steroids
difficulty getting or keeping an erection, or problems ejaculating
How we test for male factor infertility
Semen analysis
This is the starting point for almost everyone. You'll produce a sample in a private room at the clinic (or at home, if you'd prefer, and we'll explain how to store and bring it in), and our on-site lab will look at:
Sperm count
How many sperm are in the sample
Motility
How well the sperm are moving
Morphology
The size and shape of the sperm
We'll ask you to avoid ejaculating for two to three days beforehand, and to skip lubricants, as these can affect the sample.
Further tests, if you need them
Depending on your results and history, your doctor may suggest a male hormone profile to look at sperm production, or genetic testing to check for underlying genetic causes. We'll always explain why a test is being recommended and what it could tell us.
What happens next
Start with our pre-treatment bundle
If you're planning treatment as a couple, our pre-treatment bundle brings all the essential tests and your consultation together, so your doctor has the full picture from day one. It includes a semen analysis for the partner providing sperm, so if there's a male factor involved, we'll know about it before you sit down with your doctor.
What's included
Semen analysis for the partner providing spermA pelvic ultrasound scan for the partner providing eggs
Blood tests: AMH, full blood count, thyroid (TSH), HbA1c, and vitamin D
A joint consultation with a Care Fertility doctor to go through your results
We'll book all your appointments at the same time, and everything after that is managed through Salve, our treatment companion app. Just want to check your sperm health on its own? You can book a semen analysis separately from £265.
Pre-treatment bundle
£595
Tests, scan, and consultation
Spread the cost with Klarna. Available to new patients at all our UK clinics.
Book now See full breakdown and individual prices →Treatment options for male factor infertility
The right treatment depends on what your results show, your partner's results if you have one, and what you want from treatment. Your doctor will talk you through the options that fit your situation.
Lifestyle changes
For some men, small changes can make a real difference to sperm health. Stopping smoking, keeping alcohol within 14 units a week, working towards a healthy weight, and keeping things cool down below are all worth a go. Sperm take around three months to develop, so changes made now show up in later samples.
Medication or surgery
If a hormone imbalance is affecting sperm production, medication may help. Where there's a blockage in the epididymis, the coiled tube behind each testicle that stores sperm, surgery can sometimes correct it.
Intrauterine insemination (IUI)
Where sperm results are only slightly below normal, IUI can be an option. Sperm is washed and prepared in the lab so the best-moving sperm are selected, then placed directly into the womb at the most fertile point of the cycle.
Learn more about IUI →ICSI
Intracytoplasmic sperm injection (ICSI) is the most widely used treatment for male factor infertility. It's carried out as part of IVF: instead of leaving sperm and eggs together in a dish, our embryologists select a single sperm and inject it directly into each mature egg. The HFEA recommends ICSI where there's a very low sperm count, sperm with poor movement or shape, or where few or no eggs fertilised in a previous IVF cycle. It doesn't improve outcomes where sperm results are normal, so we'll only recommend it when it's likely to help.
Learn more about ICSI →Surgical sperm retrieval
If there's no sperm in the semen, sperm can often still be found in the testicles or epididymis. Surgical sperm retrieval collects it directly, usually under local anaesthetic or sedation, using a fine needle (PESA or TESA) or by taking a small tissue sample (TESE). The sperm is then used in ICSI. It's an option after a vasectomy, where the vas deferens is blocked or missing, or where sperm numbers are very low. For some men, your consultant may suggest trying a lab technique called multiple ejaculation resuspension and centrifugation (MERC) first.
Learn more about surgical sperm retrieval →Donor sperm
If it isn't possible to use your own sperm, or you'd rather not go through retrieval, treatment with donor sperm is another route to parenthood. Our donors are carefully assessed and screened, and you can choose from the Care Fertility Sperm Bank or import from an external sperm bank. We'll also offer you counselling to help you think it through.
Learn more about donor sperm →Looking after yourself
Hearing that your sperm results aren't where you'd hoped can knock you sideways. A lot of men tell us they felt they had to keep it to themselves, or that the conversation always seemed to centre on their partner. Whatever you're feeling, it's a normal reaction, and it's worth talking about.
Everyone having treatment with us can access our fertility counselling and support, whether you want to talk through a diagnosis, think about using donor sperm, or just have somewhere to offload. Our teams see male factor infertility every day, so there's nothing you'll say that we haven't heard before.
Explore our supportGet in touch with us
If you're worried about your sperm health, or you've had results you'd like to talk through, our patient enquiry team is here to help.
Fill in the form and we'll call you back to talk through your next steps and book your tests. Or, if you'd rather talk now, call us on 0800 564 2270.
FREQUENTLY ASKED QUESTIONS
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