Of everything that changes in a man’s fifties, this is the one least likely to be raised at the GP. It gets quietly filed under getting older, or stress, or a bad few months, and worked around. That is a shame, because erectile difficulty is one of the very few symptoms that shows up before the thing it is warning you about. It is not primarily a bedroom problem. It is a reading off your blood vessels.
TL;DR
- Erectile dysfunction is most often a vascular symptom, not a psychological one, and it typically precedes a first cardiovascular event by around two to three years.
- The penile arteries are roughly 1 to 2 mm across; the coronary arteries are 3 to 4 mm. The same furring shows up in the smaller pipes first, which is why the symptom is early.
- A 2026 analysis of more than four million men with type 2 diabetes found those with erectile dysfunction had markedly higher odds of ischaemic heart disease, stroke, peripheral artery disease and heart failure.
- The HSE lists high blood pressure, high cholesterol, diabetes and heart and circulatory disease among the conditions it can signal. Ask your GP for a full cardiovascular risk assessment, not just a prescription.
- Sildenafil 50 mg is available from Irish pharmacies without a prescription, which makes it easy to treat the symptom and skip the risk assessment entirely. Do not.
- Buying online is the worse shortcut: the HPRA detained 103,185 units of illegal erectile dysfunction medicines in 2025, the second-largest category it seized.
Why the symptom is early
An erection is a hydraulic event managed by the endothelium, the single-cell lining that runs through every blood vessel in the body. When that lining stops releasing nitric oxide properly, blood does not arrive on demand. The same endothelial failure is the opening chapter of atherosclerosis.
What makes the timing useful is plumbing. The arteries that supply the penis are roughly 1 to 2 mm in diameter. The coronary arteries are 3 to 4 mm. A given thickness of plaque narrows a small pipe proportionally far more than a large one, so the small vessels become symptomatic first. Cardiologists call this the artery size hypothesis.
The interval has been measured. The COBRA study found that erectile dysfunction preceded the first cardiovascular event in 93% of cases, by a mean of roughly two to three years. Across the broader literature it precedes coronary artery disease in about two thirds of men, arriving three to five years before an actual infarction or stroke.
Put plainly: for a lot of men, this is a two-year head start on a heart attack, delivered by the one symptom they are least likely to mention.
What the numbers look like
It is common. The Massachusetts Male Aging Study, which followed 1,709 men aged 40 to 70, put total prevalence at 52%, rising steadily with each decade. Which is precisely why it gets dismissed as inevitable.
The risk signal is sharpest where diabetes is involved. A 2026 real-world analysis of 4,013,416 men with type 2 diabetes found an overall prevalence of 35.4%, with new cases peaking at 7.2% to 7.3% a year in the 50 to 69 age band. In matched comparisons of more than 200,000 men per group, those with both conditions had higher rates of ischaemic heart disease (15.7% versus 11.5%), heart failure (8.4% versus 4.9%), stroke and peripheral artery disease. The authors’ conclusion was blunt: erectile dysfunction in type 2 diabetes should be treated as a marker of systemic vascular disease, and assessing it improves cardiovascular risk stratification.
Why this matters more in Ireland
Ireland was the first country in the world to publish a national men’s health policy, and the current plan, Healthy Ireland – Men (HI-M) 2024-2028, launched in November 2024. The need is not theoretical: male life expectancy here remains 3.6 years below female life expectancy, and premature death is 40% higher among males than females, a gap that has barely moved over time.
Those last figures come from The Real Face of Men’s Health, published by Movember with the Men’s Health Forum in Ireland in September 2025. Its commissioned economic analysis costed the five conditions responsible for the most years of life lost in Irish men, coronary heart disease among them, at over €1 billion in 2025 alone, of which €716 million (69%) was judged potentially preventable.
Prevention, in this case, has a symptom volunteering to do the work. It just needs someone to bring it up.
What the HSE says, and the detail most men miss
The HSE’s own guidance is clear that persistent erection problems warrant a GP or sexual health clinic visit because they can signal high blood pressure, high cholesterol, diabetes, hormone problems including low testosterone, heart and circulatory disease, prostate cancer, depression or anxiety.
One useful detail before you go. If the difficulty is intermittent and you still wake with erections in the morning, a psychological cause is more likely. If morning erections have faded along with everything else, that points towards a physical, usually vascular, cause. Either way it is worth saying out loud, because it changes what your GP looks for.
What you should actively ask for, and this is the point of the whole exercise, is a full cardiovascular risk assessment: blood pressure, a lipid profile, HbA1c for diabetes, weight and waist measurement, and a conversation about smoking. The HSE Chronic Disease Management Programme covers diabetes, cardiovascular disease, asthma and COPD, but it covers people already diagnosed. If you have not been diagnosed with anything yet, nobody is obliged to call you in. Asking is your job.
Check the medicine cabinet before you blame your age
Plenty of commonly prescribed medicines can cause or worsen erectile dysfunction: some beta blockers and thiazide diuretics, SSRI antidepressants, finasteride, some antipsychotics. Men on blood pressure treatment show higher rates than untreated men, partly because of the drugs themselves. Do not stop anything on your own, but do ask your GP or pharmacist whether an alternative within the same class would do the same job with less of this side effect. It frequently would.
The pharmacy shortcut, and its trap
Sildenafil 50 mg is now available from Irish pharmacies without a prescription, sold as Viagra Connect or the generic Sidena, and supplied only by the pharmacist after a consultation and assessment under Pharmaceutical Society of Ireland guidance. Other strengths, and the other PDE-5 inhibitors such as tadalafil, vardenafil and avanafil, remain prescription only.
Used well, that pharmacist conversation is a genuine front door to care. Used badly, it becomes a way to treat the symptom and never investigate the cause. Treat it as a first step and book the GP anyway.
One hard safety line: PDE-5 inhibitors must never be combined with nitrate medicines such as GTN spray or isosorbide, because the blood pressure drop can be catastrophic. Tell the pharmacist everything you take.
Do not buy it online
The HPRA detained 763,027 dosage units of illegal and falsified medicines in 2025, arriving in just under 14,000 packages, each linked to a separate purchase by a member of the public. Erectile dysfunction medicines made up 103,185 of those units, 14% of the total and the second-largest category after sedatives.
Falsified tablets contain unpredictable doses of active ingredient, or none, or something else entirely. Combining an unknown quantity of a vasodilator with undiagnosed heart disease is exactly the scenario the pharmacist assessment exists to prevent.
What actually helps
The measures that improve erectile function are, almost without exception, the measures that protect your heart. That is not a coincidence, it is the same mechanism.
- Stop smoking. Nothing else you do for your endothelium comes close. The HSE Quitline is 1800 201 203.
- Move most days. Aerobic exercise improves endothelial function measurably, and erectile function is one of the better-evidenced outcomes.
- Lose weight if you are carrying extra around the middle. Central adiposity drives both insulin resistance and the hormonal picture.
- Cut back on alcohol. The HSE lists it among the everyday causes, and the effect is dose dependent.
- Mind your sleep. Loud snoring plus daytime sleepiness suggests sleep apnoea, a frequent and frequently missed contributor.
- If you cycle more than three hours a week, take a break from the saddle. The HSE specifically flags this.
Where anxiety, low mood or relationship strain is driving things, the HSE recommends counselling, CBT or sex therapy, alongside or instead of medication. Vacuum devices remain a reasonable option where tablets are unsuitable.
The conversation is the treatment
Irish men present late, and GPs in the Movember research cited reluctance to raise sensitive subjects as a live barrier. This subject is the most sensitive of the lot. It is also the one carrying the most useful information.
So reframe it before you go. You are not booking an appointment about your sex life. You are booking an appointment about your arteries, and you happen to have noticed the earliest symptom there is. That is not an awkward conversation. That is a man who caught something two years early.
At Críonna Health we write about the parts of ageing well that get left unsaid, because that is usually where the useful information is hiding. If you have been talking yourself out of mentioning something, that is generally the strongest argument for mentioning it.
This article is for general information and is not a substitute for individual medical advice. If you have chest pain, breathlessness or sudden weakness, call 112 or 999.
📷 Photo by Yunus Alexander on Unsplash
