When men hear "pelvic floor exercises," they tend to associate the term with postpartum recovery or urinary incontinence. The idea that targeted muscle contractions could influence erectile function sounds, to many, like wishful thinking — particularly when pharmaceutical options like PDE5 inhibitors exist. But a growing body of clinical evidence suggests that pelvic floor muscle training (PFMT) addresses a component of erectile physiology that medications do not directly target: the muscular mechanisms responsible for penile rigidity and the maintenance of venous occlusion during erection.
The Muscular Architecture of Erection
An erection is commonly understood as a vascular event — arterial inflow increases, smooth muscle relaxes, and the corpora cavernosa engorge with blood. This is accurate but incomplete. What transforms tumescence (partial engorgement) into full rigidity is compression of the engorged corpora against the ischiopubic rami by two specific skeletal muscles: the ischiocavernosus and the bulbocavernosus (also called the bulbospongiosus) [1].
The ischiocavernosus muscles run along the crura of the penis, anchoring to the ischial tuberosities. When they contract, they compress the proximal corpora cavernosa, trapping blood and elevating intracavernosal pressure to levels that exceed systolic blood pressure — sometimes reaching 200 mmHg or more during the rigid-erection phase [1]. Without this muscular contribution, erections may achieve engorgement but lack the rigidity necessary for penetrative intercourse.
The bulbocavernosus muscle wraps around the bulb of the penis and contributes to ejaculatory expulsion, but it also assists in maintaining venous occlusion during the tumescence phase. Together, these muscles form the striated component of a system that the smooth-muscle vasodilatory pathway — the one targeted by PDE5 inhibitors — depends on for full functional output.
Why Pelvic Floor Weakness Contributes to Erectile Dysfunction
Age-related sarcopenia does not spare the pelvic floor. Studies using perineal ultrasound and electromyography have demonstrated measurable declines in both the resting tone and maximal voluntary contraction strength of the bulbocavernosus and ischiocavernosus muscles in men over 40 [2]. Sedentary behavior, obesity, chronic straining, and prior pelvic surgery accelerate this decline.
When these muscles weaken, two things happen. First, the rigid-erection phase becomes less reliable. Men may notice that erections feel "softer" even when arousal and blood flow are adequate — a complaint that does not always respond well to PDE5 inhibitors alone, because the pharmacological target (cGMP preservation in cavernosal smooth muscle) does not address skeletal muscle contraction. Second, venous leak — the premature drainage of blood from the corpora cavernosa — may worsen, since the muscular compression that assists veno-occlusion is diminished.
This distinction matters clinically. A man whose primary issue is insufficient arterial inflow will benefit most from vasodilatory therapy. A man whose issue is inadequate rigidity despite reasonable engorgement may have a pelvic floor component that no pill directly addresses.
The Dorey Trial: Landmark Evidence
The most frequently cited trial on PFMT and erectile dysfunction was conducted by Grace Dorey and colleagues, published in the British Journal of General Practice in 2005. This randomized controlled trial enrolled 55 men aged 20 and older with erectile dysfunction lasting at least six months. Participants were randomized to either an intervention group receiving pelvic floor muscle exercises with biofeedback and lifestyle advice, or a control group receiving lifestyle advice alone [3].
At three months, the intervention group showed a statistically significant mean increase of 6.74 points on the erectile function domain of the International Index of Erectile Function (IIEF), compared to controls (P = 0.004). Anal squeeze pressure — a surrogate for pelvic floor strength — increased by 44.16 cmH₂O in the intervention group versus controls (P < 0.001) [3].
After the blinded assessment period, all participants were offered the pelvic floor exercise program. At the final six-month assessment of the entire cohort, 40% of men had regained normal erectile function, 35.5% had improved, and 24.5% showed no improvement [3]. These response rates are notable for a non-pharmacological intervention with no systemic side effects.
Systematic Reviews Confirm the Signal
A 2019 systematic review by Myers and colleagues, published in Physiotherapy, analyzed the cumulative evidence for PFMT in male sexual dysfunction. Across the included studies, the authors found consistent improvements in both erectile function and ejaculatory control following structured pelvic floor training programs. Effect sizes varied with protocol intensity and supervision, but the direction of benefit was consistent [4].
The review noted that supervised programs with biofeedback tended to produce larger effects than unsupervised home exercise alone — a finding consistent with the general exercise physiology principle that guided training with objective feedback improves motor recruitment and adherence.
A 2024 systematic review and meta-analysis by Chen and colleagues, published in Andrology, examined the effect of different physical activities on erectile dysfunction in men not receiving PDE5 inhibitor therapy. The analysis found that exercise interventions — including pelvic floor training — produced statistically significant improvements in IIEF scores, with aerobic exercise and PFMT showing the most consistent effects [5]. This finding is particularly relevant because it demonstrates that physical training can meaningfully improve erectile function even in the absence of pharmacological support.
How Pelvic Floor Exercises Are Performed
The basic pelvic floor contraction — often called a Kegel exercise — involves voluntarily contracting the muscles used to stop the flow of urine midstream or to prevent passing gas. The sensation is one of lifting and squeezing the perineal area inward and upward, without contracting the abdominals, gluteals, or adductors.
Clinical protocols typically prescribe the following structure:
- Identification phase: Correctly isolating the pelvic floor muscles, ideally confirmed with digital examination or biofeedback during the first session
- Sustained contractions: Hold for 5–10 seconds, then relax for equal duration. Repeat 10–15 times per set
- Quick flicks: Rapid contract-and-release cycles to train the fast-twitch fibers of the bulbocavernosus. 10–15 repetitions per set
- Frequency: Three sets daily, performed in varying positions (supine, seated, standing) to train the muscles across different postural loads
- Duration: Minimum 12 weeks of consistent training before assessing response
The most common error is substituting abdominal bearing-down for a true pelvic floor lift. This Valsalva-like maneuver actually increases intra-abdominal pressure on the pelvic floor rather than strengthening it. Digital rectal examination during initial training, or perineal EMG biofeedback, can correct this pattern early.
PFMT as an Adjunct to Pharmacological Treatment
Pelvic floor training and PDE5 inhibitors target different components of the erectile mechanism. PDE5 inhibitors enhance the smooth-muscle vasodilatory response by preserving cGMP. Pelvic floor exercises strengthen the striated muscle contractions that convert tumescence into rigidity and maintain venous occlusion. These mechanisms are complementary, not redundant.
For men with mild-to-moderate erectile dysfunction, PFMT alone may be sufficient — the Dorey trial demonstrated that 40% of participants achieved normal function without medication [3]. For men with more significant vascular or neurological contributions, the combination of a daily PDE5 inhibitor with a structured pelvic floor program may address both the smooth-muscle and skeletal-muscle components simultaneously.
There is also an important psychological dimension. Men who actively participate in a physical rehabilitation program often report greater perceived control over their condition, which can reduce performance anxiety — itself a significant contributor to erectile difficulty. Unlike a pill, which is taken passively, pelvic floor training requires engagement, and that engagement can shift the cognitive framing of ED from an uncontrollable medical condition to a modifiable physical one.
Who Benefits Most
The clinical evidence suggests that PFMT is most effective for men with:
- Venous leak or venous insufficiency, where inadequate veno-occlusion allows premature drainage of the corpora cavernosa
- Post-prostatectomy erectile dysfunction, where pelvic floor weakness is a known contributor to functional impairment
- Mild-to-moderate ED with adequate arousal, suggesting that the upstream signaling and vascular inflow are intact but the rigidity mechanism is underperforming
- Age-related decline in erectile quality, particularly in men over 40 who have noticed a gradual softening of erections without an identifiable vascular or hormonal cause
Men with severe vasculogenic ED or significant neurological impairment may derive less benefit from PFMT alone, though it can still serve as a useful adjunct to pharmacological or device-based therapies.
Conclusion
The clinical evidence for pelvic floor muscle training in erectile dysfunction is consistent, mechanistically logical, and supported by randomized controlled data. It addresses a component of erectile physiology — striated muscle contraction for penile rigidity and venous occlusion — that pharmacological therapies do not directly target. For men willing to invest 12 or more weeks in a structured program, the potential for meaningful improvement is real, with no systemic side effects.
If you're exploring clinically-formulated options to complement a physical approach, OnyxMD offers physician-supervised treatment plans — including daily low-dose combinations of tadalafil and vardenafil — starting with a free online assessment at questionnaire.getonyxmd.com.
These statements have not been evaluated by the FDA. This content is for informational purposes only and does not constitute medical advice.
References
Lavoisier P, Courtois F, Barres D, Blanchard M. Correlation between intracavernous pressure and contraction of the ischiocavernosus muscle in man. Journal of Urology. 1986;136(4):936-939. doi:10.1016/S0022-5347(17)45134-4
Stafford RE, Ashton-Miller JA, Constantinou CE, Hodges PW. Novel insight into the dynamics of male pelvic floor contractions through transperineal ultrasound imaging. Journal of Urology. 2012;188(4):1224-1230. doi:10.1016/j.juro.2012.06.028
Dorey G, Speakman MJ, Feneley RCL, Swinkels A, Dunn CDR. Pelvic floor exercises for erectile dysfunction. BJU International. 2005;96(4):595-597. doi:10.1111/j.1464-410X.2005.05690.x
Myers C, Smith M. Pelvic floor muscle training improves erectile dysfunction and premature ejaculation: a systematic review. Physiotherapy. 2019;105(2):235-243. doi:10.1016/j.physio.2019.01.002
Chen Y, Li W, Chen L, et al. Effect of different physical activities on erectile dysfunction in adult men not receiving phosphodiesterase-5 inhibitors therapy: a systematic review and meta-analysis. Andrology. 2024;12(5):1087-1099. doi:10.1111/andr.13682
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