We look after the whole man, not just his numbers. CMFH brings semen health, hormones, sexual function, reproductive anatomy and wider health into one clear, doctor-led assessment.
CMFH film · Footage, to be filmed · 45–60 s · In productionDr Patel to camera: the purpose-shot CMFH film
Channel 4 · Broadcast footage · 20–30 s · In productionCelebrity Save Our SpermRights to be cleared with Channel 4
Fig. 1
A result is information, not a verdict
A semen analysis is an important starting point.
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It can describe the sample, but it cannot by itself explain why a result looks the way it does, declare a man fertile or infertile, or show what should happen next. We put results into context: your history, symptoms, fertility timeline, previous treatment, medicines, hormones, testicular health, sexual function and relevant aspects of general health. The aim is not to order every test. It is to ask better questions, investigate where the answer could matter, and explain the uncertainties honestly.
That uncertainty is real, and even a detailed assessment cannot always remove it. But ‘unexplained’ should not end the conversation before the man has had a thoughtful history, appropriate examination and proportionate investigation.
Desire can change. Erections or ejaculation may become more difficult. Couples can feel pressure, blame or distance at exactly the point they are expected to keep trying. These are common clinical concerns, not personal failures, and they deserve a calm, private conversation.
The numbers at a glance
51.6%
Estimated fall in sperm concentration among unselected men, 1973–2018.1
62.3%
Estimated fall in total sperm count over the same period.1Among unselected men
2.6nmol/L per decade
Average rate of decline in total testosterone identified across studies covering 1972–2019.2Conference abstract
3.3nmol/L per decade
Approximate rate of testosterone decline in studies with sampling after 2000.2Conference abstract
~50%
Proportion of infertile couples in whom a male-associated factor is identified.3
3.9years
Current difference between male and female life expectancy at birth in the UK.4
~£5,000
HFEA’s headline average price for a privately funded IVF cycle.5
£7,000–£12,000+
The amount a private treatment attempt can readily reach once additional treatment and medication are required.6–8
30%
Average UK live-birth rate per embryo transferred using patients’ own eggs in 2024.9Preliminary 2024 data
29%
That’s how many young women knew the actual odds IVF works for a 35 year old.Source awaited
Sources for these figures
Levine H, Jørgensen N, Martino-Andrade A, Mendiola J, Weksler-Derri D, Jolles M, et al. Temporal trends in sperm count: a systematic review and meta-regression analysis of samples collected globally in the 20th and 21st centuries. Hum Reprod Update. 2023;29(2):157–176. doi:10.1093/humupd/dmac035.
Levy A, Hansen LS, Abu Ahmad W, Jørgensen N, Mendiola J, Martino-Andrade A, Martin L, Swan SH, Levine H. Temporal trends in total and free testosterone (1972–2019): a systematic review and meta-trend analysis. Hum Reprod. 2026;41(Suppl 1):deag083.202. doi:10.1093/humrep/deag083.202. [Conference abstract.]
European Association of Urology. EAU Guidelines on Sexual and Reproductive Health: Male Infertility. EAU Guidelines Office; 2026. uroweb.org
Office for National Statistics. National life tables – life expectancy in the UK: 2022 to 2024. ONS; 10 December 2025. ons.gov.uk
Human Fertilisation and Embryology Authority. In vitro fertilisation (IVF). HFEA. Accessed 19 August 2026. hfea.gov.uk
Human Fertilisation and Embryology Authority. Costs and funding. HFEA. Accessed 19 August 2026. hfea.gov.uk
Care Fertility London. Fee Schedule 2026. Care Fertility; 2026. carefertility.com
Centre for Reproductive and Genetic Health. IVF Costs London: Price List 2026. CRGH; 2026. crgh.co.uk
Human Fertilisation and Embryology Authority. Fertility treatment 2024: trends and figures. HFEA; 16 June 2026. hfea.gov.uk
29%: source awaited.
Instagram · Dr Patel’s reel · 20–35 s · In production“Your sperm might be the most honest health check you’re not taking”
Clear care, joined up around you
OneTell us what has happened so far
TwoComplete only the tests that fit
ThreeA clinician interprets the findings in context
FourAn honest explanation and a practical next step
The four steps in full
Tell us what has happened so far and share any relevant previous results.
Complete only the tests that fit the agreed starting point.
A clinician interprets the findings in context, rather than reading each result in isolation.
Receive an honest explanation and a practical next step, including when no further CMFH testing is worthwhile.
Specialist input when it is needed
CMFH brings together expertise in male fertility, general practice, sexual medicine, urology, interventional radiology and nutrition.
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Not every patient needs every member of the team. Your care should be led by the question, not by the size of the team.
We can also coordinate appropriate tests and review for patients across the UK. Some parts of the pathway may require travel or a specific laboratory appointment; we will explain that before you book.
You do not need to arrive with the right medical language or a complete set of results. Start with what you know. We will help you work out what is useful from here.
