Has cycling put the brakes on your erections?

As well as the environment, your heart, lungs, and muscles all benefit from taking up cycling. Regular cyclists have a lower risk of cardiovascular disease and cancer than people who don't cycle to get around.¹ But does that saddle time do anything to your sex life? Here's what the research actually says.

What does the research say about cycling and erectile dysfunction?

The evidence is mixed. One of the earliest studies, from 1997, found higher rates of erectile dysfunction, penile numbness, and hand fatigue among long-distance amateur cyclists compared with non-cyclists.² A 2021 review pooled six studies covering 3,330 cyclists and 1,524 non-cyclists. Compared directly, the two groups were no different, but after adjusting for age and other health conditions, cyclists had about twice the odds of erectile dysfunction.³

Not every study agrees. A large observational study of regular UK cyclists found no association between cycling and erectile dysfunction or infertility.⁴ The authors of the studies that do find a link point to methodological limits too, most rely on self-reported ED, which makes it hard to draw firm conclusions either way.

The likely mechanism, where a link does exist, is pressure. The perineum, the area between the anus and the genitals, is packed with the nerves and blood vessels that a firm erection depends on. Sitting on a narrow saddle for long periods can compress the pudendal nerve and artery, or reduce blood flow and oxygen to the penis, and that's what researchers think may cause temporary numbness or, in some cases, contribute to erectile dysfunction.⁵

How to reduce the risks associated with cycling and erectile dysfunction

The good news is that most of the risk comes down to setup, not cycling itself, and there's a lot you can do to reduce it while still getting the benefits.

Saddle

Swap a narrow, hard saddle for a wider one, ideally with gel padding, to reduce pressure on the perineum.⁶ Saddle design measurably affects blood flow to the penis during cycling, so this isn't just comfort, it's a real factor in risk.⁷

Posture

Raising your handlebars, so you're sitting more upright, takes some of the weight off the perineum. Standing up out of the saddle every so often also helps. Research shows this can reverse most of the drop in penile blood flow caused by sitting.⁵

Bike type

If you're still getting numbness after changing saddle and posture, a recumbent bike shifts your body weight away from the perineum entirely and can be worth considering.

Intensity

Since the risk seems to rise with time spent cycling each week, mixing in other cardio, like swimming or running, alongside cycling can help you keep the fitness benefits while cutting down time in the saddle.

The numan take

The research on cycling and erectile dysfunction isn't settled, but the balance of evidence suggests that regular, long-distance cycling on the wrong setup can put pressure on the nerves and blood vessels involved in getting an erection. For most people who cycle for fun, the risk looks small, and cycling's benefits for your heart and overall fitness are well established. If you're a regular or long-distance cyclist and you've noticed numbness or erection problems, a few changes to your saddle, posture or bike, alongside mixing up your exercise, are a sensible first step before assuming anything more serious is going on.

References

^{1 Celis-Morales CA, Lyall DM, Welsh P, et al. Association between active commuting and incident cardiovascular disease, cancer, and mortality: prospective cohort study. BMJ. 2017;357:j1944.}

^{2 Andersen KV, Bovim G. Impotence and nerve entrapment in long distance amateur cyclists. Acta Neurol Scand. 1997;95(4):233-240.}

^{3 Gan ZS, Ehlers ME, Lin FC, Wright ST, Figler BD, Coward RM. Systematic review and meta-analysis of cycling and erectile dysfunction. Sex Med Rev. 2021;9(2):304-311.}

^{4 Hollingworth M, Harper A, Hamer M. An observational study of erectile dysfunction, infertility, and prostate cancer in regular cyclists: cycling for health UK study. J Mens Health. 2014;11(2):75-79.}

^{5 Litwinowicz K, Choroszy M, Wróbel A. Strategies for reducing the impact of cycling on the perineum in healthy males: systematic review and meta-analysis. Sports Med. 2021;51(2):275-287.}

^{6 Schwarzer JU, Sommer F. Cycling and penile oxygen pressure: the type of saddle matters. Eur Urol. 2002;41(4):393-399.}

^{7 Vicari DSS, Patti A, Giustino V, Figlioli F, Alamia G, Palma A, Bianco A. Saddle pressures factors in road and off-road cyclists of both genders: a narrative review. J Funct Morphol Kinesiol. 2023;8(2):71.}