How long after quitting does the erection improve?

First signs are often noticeable within the first weeks. The meaningful improvement sets in between 3 and 12 months for most ex-smokers.

If I smoke 'little' (a few cigarettes a day), am I protected?

No. Risk starts from the first daily cigarettes — endothelial dysfunction reacts to small doses. The dose-response is progressive: less smoking, less risk, but risk exists from the first regular cigarette.

Do Viagra or other drugs treat the problem?

They allow a one-off erection but don't treat the vascular cause. Without quitting, the problem keeps worsening in the background.

What if ED doesn't improve after quitting?

It happens — especially if exposure was very long or there are other factors (diabetes, hypertension). A urology consultation is in order. Most cases are treatable.

Does cannabis smoked have the same effects?

Cannabis alone (vaped or eaten) has a more complex and less documented effect. But smoked with tobacco (the common case in many countries), it clearly stacks the vascular damage.

Smoking and erection: the cigarette, a major and hidden cause of erectile dysfunction in men

Smoking raises erectile dysfunction risk by 51 %. Mechanisms, figures, and the good news: it's partly reversible once you quit.

June 9, 2026 Aria

The scientific basis on quitting smoking was reviewed on a voluntary basis by Pr. Bertrand Dautzenberg , a tobacco specialist, in order to rule out gross, potentially dangerous errors. It reflects positions commonly shared by health professionals and health agencies, without always corresponding exactly to his thinking or his practice. He is not the author of this text; he has only carried out a vigilance review of it.

No one likes talking about it. Yet the link between cigarettes and erection problems is one of the best documented in medicine — and one of the most direct. The good news is that the body repairs some of the damage fairly quickly after you quit.

What the science actually says

A meta-analysis of 83 studies (Cao et al., 2013) — the largest ever done on the topic — settled it: smoking is a major and independent risk factor for erectile dysfunction, regardless of age and independently of other chronic conditions.

+ 51 % risk of erectile dysfunction in active smokers compared with non-smokers. The risk doubles for those smoking more than 20 cigarettes a day.

Cao et al., meta-analysis 2013, 83 studies

And it isn't just a stats issue: raw prevalence speaks for itself.

Population	Erectile dysfunction prevalence
Non-smoking men (general population)	around 28 %
Long-term regular smokers	around 40 %
Ex-smokers	in between (between 28 % and 40 %)

Why: the penis runs on its arteries

An erection is a vascular event. For the penis to stiffen, its corpora cavernosa (two spongy structures) must fill with blood delivered by the penile arteries. Whatever damages those arteries damages the erection.

And tobacco is a first-class artery saboteur.

Three mechanisms that stack up

Erectile dysfunction in a young male smoker is a cardiovascular warning. The penis is a barometer: what happens there will happen elsewhere ten years later.

Selon les pneumologues

Myth vs reality

The good news: it's partly reversible

- 22 % ED risk for an ex-smoker compared with an active smoker. The body repairs itself when given the chance.

American Journal of Epidemiology, 2016

A few weeks blood flow improves; the first nocturnal erections may come back better.
2 to 3 months NO production returns to normal; erection quality starts to recover.
6 to 12 months erectile function clearly improves in most ex-smokers.
Several years arteries partly repair; the oldest damage may stay.

What else can help, beyond quitting

And libido in all this?

Erection is the mechanics. Libido is the engine. Tobacco hits both: the drop in testosterone induced by cigarettes moderately reduces sexual desire — in men and in women. See our dedicated libido article.

In United Kingdom

Your questions

How long after quitting does the erection improve?

First signs are often noticeable within the first weeks. The meaningful improvement sets in between 3 and 12 months for most ex-smokers.
If I smoke 'little' (a few cigarettes a day), am I protected?

No. Risk starts from the first daily cigarettes — endothelial dysfunction reacts to small doses. The dose-response is progressive: less smoking, less risk, but risk exists from the first regular cigarette.
Do Viagra or other drugs treat the problem?

They allow a one-off erection but don't treat the vascular cause. Without quitting, the problem keeps worsening in the background.
What if ED doesn't improve after quitting?

It happens — especially if exposure was very long or there are other factors (diabetes, hypertension). A urology consultation is in order. Most cases are treatable.
Does cannabis smoked have the same effects?

Cannabis alone (vaped or eaten) has a more complex and less documented effect. But smoked with tobacco (the common case in many countries), it clearly stacks the vascular damage.

sources

Cao S, Yin X, Wang Y et al., Smoking and risk of erectile dysfunction: systematic review of observational studies with meta-analysis, PLoS ONE, 2013, 8(4).
Verze P, Margreiter M, Esposito K et al., The Link Between Cigarette Smoking and Erectile Dysfunction: a systematic review, European Urology Focus, 2015.
NHS, Erectile dysfunction (impotence), NHS Health A-Z.
Bacon C, Mittleman M, Kawachi I et al., A prospective study of risk factors for erectile dysfunction, Journal of Urology, 2006.