Low testosterone
Testing for ED
Erectile dysfunction is rarely just about sex. It’s often the first red flag for deeper health issues like heart disease, diabetes, or low testosterone. A simple blood test can uncover what’s really going on beneath the surface, giving you answers instead of guesswork. The sooner you know the cause, the sooner you can take control not just of your erections, but of your long-term health.
Detect potential health risks
Around 40% of men with erectile dysfunction have an underlying health issue that may contribute to their symptoms.1
How your blood test holds the answers
We provide a comprehensive assessment of key health areas linked to ED to help identify possible causes.
BIOMARKERS
NUMAN BLOOD TESTS
STEP ONE
Order your at-home test
Order your at-home test and get free 48-hour letterbox delivery.

STEP TWO
Collect your blood sample
Follow the simple instructions in your blood test. Return your sample for free.

STEP THREE
Get personalised results
Get your personalised results with actionable insights from our experts in 3-5 days.

UK DOCTORS AND CLINICIANS
Specialists in medicine, nutrition, performance, and diagnostics.
FAQS
REAL PEOPLE, REAL IMPACT
Knowledge
We're here to help
ED is one of the most common symptoms of testosterone deficiency. We're here to help you get an accurate diagnosis and develop a long-term treatment plan. If you're unsure about the next steps, feel free to book a free consultation with our Patient Support Managers to get started.

Samantha
In her role as Patient Support Manager for low testosterone, Samantha is dedicated to helping you with any questions or concerns you may have before and during your treatment. Samantha is a dedicated advocate for health and well-being, dedicated to empowering individuals to recognise and implement meaningful health improvements in their lives.

Greg
As a Patient Support Manager for low testosterone, Greg is dedicated to helping you with any questions or concerns you may have before and during your treatment. Greg’s approach focusses on problem-solving, fostering strong relationships, and enhancing healthcare accessibility. Greg finds pride in being part of a team that empowers patients to achieve their optimal health.
References
Li JZ, Maguire TA, Zou KH, Lee LJ, Donde SS, Taylor DG. Prevalence, comorbidities, and risk factors of erectile dysfunction: Results from a prospective real-world study in the United Kingdom. International journal of clinical practice. 2022;2022: 5229702.
Kanabar R, Mazur A, Plum A, Schmied J. Correlates of testosterone change as men age. The aging male: the official journal of the International Society for the Study of the Aging Male. 2022;25(1): 29–40.
Zhao B, Hong Z, Wei Y, Yu D, Xu J, Zhang W. Erectile Dysfunction Predicts Cardiovascular Events as an Independent Risk Factor: A Systematic Review and Meta-Analysis. Journal of Sexual Medicine. 2019;16(7):1005-1017.
Kitaw TA, Abate BB, Tilahun BD, Yilak G, Rede MB, Getie A, et al. The global burden of erectile dysfunction and its associated risk factors in diabetic patients: an umbrella reviews. BMC Public Health [Internet]. 2024;24(1):2816.