Can aspirin help with erectile dysfunction?
Aspirin may help erectile dysfunction in some men, particularly when the cause is arterial, but the evidence is mixed and it is not an approved ED treatment.
Aspirin may help with erectile dysfunction in some men, particularly when the cause is arterial — that is, related to poor blood flow. Some research, including a meta-analysis, has found that aspirin improves erectile function compared with placebo in this group, thanks to its anti-inflammatory and blood-thinning properties. But the evidence is mixed, aspirin is not an approved ED treatment, and it should never be started for this purpose without medical advice.
Aspirin is one of the most familiar medicines in the world, valued for thinning the blood and reducing inflammation. Because erections depend on healthy blood flow, researchers have asked whether those same properties could help with ED. The answer is a cautious "possibly, for some."
The link between inflammation, blood flow and ED
Erectile dysfunction is frequently a vascular problem: when the arteries that supply the penis are narrowed or inflamed, blood flow suffers and erections become difficult. Aspirin acts on exactly these pathways. By reducing inflammation and making the blood less likely to clot, it can in theory improve circulation. This is the rationale behind studying it for "arterial" ED — the form driven by blood-vessel disease rather than nerves or hormones.
What the research shows
Studies have produced varying but partly encouraging results.
| Evidence | Finding |
|---|---|
| 2020 meta-analysis (American Journal of Men's Health) | Aspirin appears to help arterial ED; erectile function significantly improved versus placebo |
| Randomised placebo-controlled work | Suggested benefit in selected men with vascular causes |
| Earlier studies on aspirin and NSAIDs | Mixed results; some raised questions about NSAIDs and ED |
The most positive findings centre on men whose ED is clearly arterial. For other causes — neurological, hormonal or psychological — there is little reason to expect aspirin to help.
Why the picture is debated
The relationship is not settled. Some studies have looked at aspirin and other anti-inflammatory drugs (NSAIDs) and found inconsistent effects, and a few raised concern that long-term NSAID use might be associated with ED rather than relieving it. This is part of why aspirin is not a recognised treatment: the benefit appears real but narrow, and it has to be weighed against aspirin's own risks, such as stomach irritation and bleeding.
How aspirin differs from ED medication
It helps to be clear about what aspirin is and is not. Unlike the prescription PDE5 inhibitors covered in our guide to medications for ED, aspirin was never designed to treat erectile dysfunction. The PDE5 inhibitors act directly and powerfully on the erection pathway, with strong, reliable evidence; aspirin, by contrast, might improve the vascular environment in which erections happen, but only indirectly and only for a specific subgroup of men. In other words, aspirin is not a substitute for proper ED treatment — at most it might be a small piece of a wider cardiovascular picture.
There is also a broader lesson here about vascular health. The fact that an anti-inflammatory, blood-thinning drug shows any benefit at all underlines how much erectile function depends on healthy arteries. For many men, the most effective "aspirin-like" strategy is not aspirin itself but the lifestyle changes that improve blood vessel health: stopping smoking, exercising, managing weight, and controlling blood pressure and cholesterol. These address the same vascular root cause more safely and more comprehensively than a daily tablet.
Aspirin is not a DIY ED treatment
The most important takeaway is that you should not start taking aspirin to treat ED on your own. Aspirin has genuine side effects and interactions, and self-medicating can be harmful — especially alongside other drugs. If your ED may be vascular, the right move is to see a doctor, who can assess your cardiovascular health and decide whether aspirin has any place in your care. ED is often an early warning sign of heart and artery disease, so that conversation matters for more than your sex life. The proven treatments are covered in our guide to medications for ED, and related vascular factors in our article on Viagra and heart rate.
The bottom line
Aspirin shows promise for arterial erectile dysfunction, but the evidence is mixed and it is not an approved treatment. Used carelessly it can do harm. Treat it as a question for your doctor, not a shortcut — and if hormones might be involved, see our article on high testosterone and ED. For the full picture, return to our guide to erectile dysfunction and male sexual health.
Frequently asked questions
- Does aspirin cure erectile dysfunction?
- No. It may improve arterial ED in some men, but it is not a cure or an approved treatment.
- Should I take aspirin for ED?
- Not without medical advice. Aspirin has real risks and interactions, and a doctor should decide whether it is appropriate.
- Which type of ED might aspirin help?
- The arterial type, caused by poor blood flow. It is unlikely to help nerve, hormonal or psychological causes.