Most men, at some point after a Peyronie’s diagnosis, ask themselves some version of this question. Did I do something wrong? Did I cause this? Is this what happens when you’ve been too rough, too frequent, too something?
It’s a natural thing to wonder. And it’s worth giving it a proper answer – because the guilt that comes with not knowing is often worse than the condition itself.
The short answer is no. But the longer answer is more interesting, and more useful.
What actually causes Peyronie’s disease?
The most widely accepted cause of Peyronie’s disease is micro-traumas – tiny injuries to the fibrous sheath around the erectile chambers during sex – that trigger an abnormal healing response in certain men. Instead of repairing cleanly, the body lays down dense scar tissue (plaque). The injury itself is not the problem; it is the way a particular man’s biology responds to it. This abnormal healing tendency is largely genetic and is not caused by anything the man did.
These aren’t dramatic events. They don’t necessarily involve pain at the time, or anything unusual. The kind of bending or pressure that can happen during ordinary sexual activity is enough, in some men, to cause small tears in the fibrous sheath around the erectile chambers.
In most men, those tears heal cleanly. The body repairs the tissue, leaves no trace, and moves on. But in some men – and this is the key part – the healing process produces dense scar tissue instead of normal tissue. That scar tissue is what Peyronie’s disease is.
Why do some men get Peyronie’s disease and others don’t?
The tendency to form abnormal scar tissue in response to injury is at least partly genetic. Men with Dupuytren’s contracture – where similar fibrous tissue forms in the palms of the hands – are significantly more likely to develop Peyronie’s disease, as the two conditions share the same underlying mechanism and run in the same families. There is also evidence of an autoimmune component in some cases, where elevated immune markers suggest the body’s immune system is reacting abnormally to penile tissue.
Beyond Dupuytren’s, there appears to be a broader genetic susceptibility to what researchers sometimes call fibromatosis – an overactive scarring response. Some men’s bodies simply produce more fibrous tissue in response to injury than others. This is not a character flaw. It’s a biological tendency, no different from being prone to keloid scars on the skin.
I’ve thought about this a lot, given that I went through Peyronie’s twice. My father had Dupuytren’s contracture. When I look back, the genetic piece was probably always part of my picture – I just didn’t know it until I was sitting in a urologist’s office the first time.
What risk factors make Peyronie’s disease more likely?
The factors most consistently associated with higher risk or worse outcomes in Peyronie’s disease are: diabetes, high blood pressure, cardiovascular disease (which affect the body’s ability to manage inflammation and tissue repair), smoking, older age (most common between 40 and 70), and a family history of Dupuytren’s contracture or Peyronie’s disease. These are risk factors that affect the terrain – they make certain outcomes more or less likely, but they are not direct causes in themselves.
None of these are causes in a direct sense. A man with well-controlled diabetes who develops Peyronie’s didn’t cause it through his diabetes. He just had a risk profile that made it somewhat more likely.
What does NOT cause Peyronie’s disease?
Peyronie’s disease is not caused by too much sex, a particular sexual practice or position, or any specific partner. There is no evidence that frequency of sexual activity is a meaningful risk factor. It is not related to sexually transmitted infections. It is not a consequence of past behaviour. And it is not a sign that something was inherently wrong before this happened. It is a healing response that went in the wrong direction in a man whose biology made that particular error more likely.
These things come up in conversations about this condition. They deserve a clear answer.
Why do men still feel guilty about Peyronie’s disease even when they know it’s not their fault?
Guilt persists with Peyronie’s disease because the condition affects a part of the body so closely tied to male identity and sexuality that it can feel impossible that it just happened without cause. But the biological pathway that leads to Peyronie’s disease does not run through anything you did or didn’t do – it runs through your genetics, your immune system, and the particular way your body responds to injury. These are not things you control. What you can control is what you do from here.
I’ve noticed this guilt in the men I’ve spoken to about this, and I’ve felt it myself. Both times. There’s a particular kind of shame that comes with a condition like this – the feeling that you should have known better, or been more careful, or been somehow different. It’s not rational, and it’s not helpful. But it’s real.
Saying it once doesn’t always make it go away. So I’ll say it plainly: you didn’t cause this. And the energy spent on that question is better spent on the next one – what now.
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Frequently Asked Questions
Can Peyronie’s disease be caused by a specific sexual incident?
In some cases a more significant penile injury – such as a penile fracture or a moment of acute bending during sex – can be identified as a trigger. But in most cases Peyronie’s develops from accumulated micro-traumas without any single identifiable event. Men who search for the one moment that caused it usually cannot find it, because it is the cumulative effect of small injuries combined with a particular healing tendency, not one definitive incident.
Is Peyronie’s disease hereditary?
There is a clear genetic component. Men with a family history of Peyronie’s disease or Dupuytren’s contracture are at significantly higher risk. Studies have identified specific genetic associations with the abnormal fibrotic healing response involved. This does not mean the condition is inevitable if it runs in your family – but it is a meaningful risk factor, and knowing about it is useful context.
Does masturbation cause Peyronie’s disease?
There is no evidence that masturbation is a cause of Peyronie’s disease. The micro-traumas that are theorised to trigger the condition can occur during any sexual activity, but the key variable is the individual’s healing response, not the type of activity. The idea that masturbation specifically causes Peyronie’s is not supported by research and is one of a number of misconceptions about the condition that circulate online.
Can Peyronie’s disease be prevented?
There is no proven way to prevent Peyronie’s disease in men who are genetically susceptible to it. However, managing the broader risk factors – keeping blood pressure and blood sugar well controlled, not smoking, maintaining good cardiovascular health – supports the body’s ability to handle inflammation and tissue repair, which reduces the likelihood of the abnormal healing response taking hold. Once a first episode has occurred, protecting the tissue from significant trauma during sexual activity is sensible ongoing practice.
Sources
American Urological Association – Peyronie’s Disease Guideline – Aetiology, genetic associations and risk factors.
Cleveland Clinic – Peyronie’s Disease – Causes, risk factors and association with Dupuytren’s contracture.
NIH/PMC – Peyronie’s disease aetiology and autoimmune associations – Research on immune markers and genetic susceptibility.
Harvard Health Publishing – Peyronie’s Disease – Patient overview of causes and risk factors.
Journal of Sexual Medicine – Genetic basis of Peyronie’s disease – Research on familial clustering and fibromatosis mechanisms.
