What Is Peyronie’s Disease? A Plain English Explanation

by | May 27, 2026 | Education - I've been diagnosed | 0 comments

If you’ve just been diagnosed with Peyronie’s disease, or you’re trying to understand whether that’s what you have, you’ve probably already run into a wall of medical language that doesn’t make things much clearer. Words like tunica albuginea, fibromatosis, and collagen deposition sound serious and complicated in ways that don’t actually help you understand what’s happening in your body.

So here’s a plain English version. No jargon. Just what this condition actually is, how it works, and what it means for you.

What is Peyronie’s disease, in plain terms?

Peyronie’s disease is a condition where scar tissue (called plaque) forms inside the erectile tissue of the penis. The plaque is stiff and does not expand the way healthy tissue does during an erection – causing the penis to curve, dent, or narrow toward the affected area. It is caused by small injuries to the penile tissue that heal abnormally in certain men, producing dense fibrous tissue instead of normal flexible tissue.

Inside the shaft, there are two tube-shaped chambers that fill with blood during an erection, enclosed in a layer of tough fibrous tissue – think of it like a sleeve around each chamber. That sleeve is where Peyronie’s disease happens.

When the penis fills with blood during an erection, the healthy tissue expands normally. The scar tissue doesn’t. It holds that area back. The result, depending on where it is and how much has formed, is a curve, a dent, a narrowing, or some combination. That scar tissue is called plaque. It’s the core of what Peyronie’s disease is.

What causes Peyronie’s disease to develop?

Peyronie’s disease is caused by small injuries to the erectile tissue – usually micro-traumas during sex that most men never notice at the time – that trigger an abnormal healing response in certain men. Instead of producing normal flexible tissue, the body lays down dense scar tissue. There is also a genetic component: some men are simply more prone to this type of abnormal scarring, and it tends to run in families. It is not caused by anything the man did wrong.

Think of it like a callus – the body’s way of patching a damaged area, but overdoing it. Most of the time, these micro-injuries heal cleanly and leave no trace. In some men, the healing goes wrong.

It’s also more common in men who have had prostate surgery, and there’s an association with certain cardiovascular risk factors. But plenty of men who develop it have none of these risk factors. It can happen to anyone.

Why does Peyronie’s disease cause pain?

Pain in Peyronie’s disease is caused by active inflammation while the scar tissue is forming. The tissue is irritated and reacting – when the penis stretches during an erection, it pulls against an area that is essentially in the process of healing. This is why pain is most common in the early months of the condition. As the scar tissue finishes forming and inflammation settles, the pain usually eases – though the plaque itself remains.

The same mechanism applies as pressing hard on a fresh bruise – the surrounding tissue is inflamed and pressure on it hurts. Not every man with Peyronie’s has significant pain, but it is one of the clearest early signals that the active phase is underway.

What are the two phases of Peyronie’s disease?

Peyronie’s disease moves through two distinct phases. The active phase (typically 3-12 months) is when scar tissue is still forming, the curve may still be changing week to week, and pain is most likely to be present. The stable phase is when the plaque has finished forming, the shape stops changing, and pain usually eases. Understanding which phase you are in determines what treatments are appropriate – using the wrong approach at the wrong phase can make things worse.

This distinction matters more than most men are told. Some approaches work best during the active phase. Others are only appropriate once the tissue has stabilised. Get the timing wrong and you either miss a window or potentially cause further damage. It’s one of the most important pieces of information about this condition – and one of the least discussed in a standard medical appointment.

In my experience seeing seven urologists across two separate episodes of this condition, the phases were mentioned briefly at most. The implications for timing – what to do when, and what to avoid – were never laid out clearly. That gap is a big part of why I wrote the guide.

How common is Peyronie’s disease?

Peyronie’s disease affects an estimated 3 to 10 per cent of men, meaning tens of millions of men worldwide have experienced it at some point. It is most common in men between 40 and 70, though it can occur at any age. Men with Dupuytren’s contracture (which affects connective tissue in the hands) are at higher risk, as the same abnormal scarring mechanism is involved. Despite its prevalence, it is rarely discussed openly, which makes it feel more isolating than it is.

Does Peyronie’s disease go away on its own?

In most cases, no. Around 20 per cent of men see genuine spontaneous improvement without treatment. The other 80 per cent find the condition either stays the same or gets worse. What does tend to improve on its own is the pain – the active phase ends and inflammation settles. But the plaque itself, and the curve or shape change it causes, does not typically resolve without intervention. Stable is the more realistic best case if nothing is done.

Is Peyronie’s disease dangerous?

Peyronie’s disease is not life-threatening and will not become cancer. However, it significantly affects quality of life for many men – studies show high rates of depression and emotional distress among men with the condition, and it is associated with erectile dysfunction in 20 to 50 per cent of cases. The psychological and relational impact is real and should not be minimised.

What it does affect – and this is worth being honest about – is quality of life. Depending on severity, it can make erections painful, make sex difficult, and cause significant anxiety. The psychological weight is real, even when physical symptoms are manageable.

Can Peyronie’s disease be treated?

Yes. There is no single cure, but there are genuine treatment options, and outcomes for men who manage the condition well are meaningfully better than for those who do not. The standard medical starting point is usually low-dose daily tadalafil, which has evidence for the active phase. Beyond that, there are other options – some well-known, some that most doctors do not routinely mention – including certain supplements, specific physical interventions, and traction-based approaches for the stable phase. Surgery exists for severe cases but is never the first step.

The key variable across all of this is timing. What you do, and when you do it, matters more with this condition than most. Which is why understanding the phases – and knowing which one you’re in – is the most useful thing you can know right now.

Is Peyronie’s disease your fault?

No. Peyronie’s disease is a biological healing response that went wrong – not a consequence of anything you did. It is not caused by too much sex, the wrong kind of sex, or any personal failing. Some men are simply more prone to this type of abnormal scarring than others, largely for genetic reasons. You did not bring this on yourself.

And you’re not alone. Millions of men have been through this. It just doesn’t get talked about – not because it’s shameful, but because men don’t tend to talk about things like this. The silence makes it feel more isolating than it is.

What you do from here is what matters now.

Frequently Asked Questions

What is the tunica albuginea and why does it matter in Peyronie’s disease?

The tunica albuginea is the fibrous sheath that surrounds the erectile chambers of the penis. It is the tissue where Peyronie’s plaque forms. Normally it is elastic and expands evenly during erection. When scar tissue forms within it, that area cannot expand normally, causing the deformity. Understanding this explains why Peyronie’s produces the specific shapes it does – curve, dent, hourglass – depending on where and how the plaque is distributed.

Can Peyronie’s disease come back after it has resolved?

Yes. Peyronie’s disease can recur. A man who has had one episode is at higher risk of developing it again, particularly if the underlying genetic tendency toward abnormal scarring is present. In my own case I went through it twice – the first time in my early thirties, the second time in my mid-fifties. The second episode was managed significantly better because I understood the condition and what to do at each phase.

Is Peyronie’s disease the same as penile fibrosis?

They are related but not identical. Peyronie’s disease is a specific form of localised penile fibrosis – the plaque forms in the tunica albuginea and produces the characteristic deformity. More generalised penile fibrosis can occur as a side effect of certain medications or as a result of other conditions. When doctors refer to Peyronie’s disease specifically, they mean the localised plaque-forming condition described in this article.

At what age does Peyronie’s disease most commonly develop?

Peyronie’s disease most commonly develops in men between 40 and 70, with peak incidence around the mid-50s. However, it can and does occur in younger men – cases in men in their 20s and 30s are not rare. Age is a risk factor but not a requirement. If you are younger and have the characteristic symptoms, the condition should still be considered and assessed.

Sources

American Urological Association – Peyronie’s Disease Guideline – Comprehensive clinical guidelines on diagnosis, staging and treatment.

NIDDK – Penile Curvature (Peyronie’s Disease) – Plain language overview of the condition, phases and prevalence.

Cleveland Clinic – Peyronie’s Disease – Clinical overview including risk factors and treatment options.

Harvard Health Publishing – Peyronie’s Disease – Patient-facing explanation of the biology and management.

NIH/PMC – Epidemiology and psychological impact of Peyronie’s disease – Research on prevalence rates and emotional distress in affected men.

The Peyronie's Protocol - the complete guide

The free articles cover the what. The guide covers the how - in detail, in the right order, with the approaches that actually have evidence behind them.

Based on two personal episodes of Peyronie's disease. Neither required surgery. The guide walks through the full timeline: active phase, transition, passive phase - what to do at each stage, what to avoid, and what most urologists won't mention.

Available in English and Spanish.

  • Active and passive phase protocols
  • Supplements with real clinical backing
  • What not to do - and when
  • Traction, injections and surgery explained honestly
  • The lifestyle and blood flow factors most doctors ignore
  • A 12-month roadmap

Hugh Johnson

Author of The Peyronie's Protocol.

I have had Peyronie's disease twice and came through it without surgery - both times.

Copyright © 2026 Hugh Johnson