Peyronie's Disease: What to Know About Causes, Symptoms, and Treatment

Peyronie's disease is a connective-tissue disorder in which a fibrous plaque of scar tissue forms in the tunica albuginea of the penis, causing penile curvature and sometimes pain, shortening, or erectile difficulty. It is a distinct medical condition, not a normal variation. So is Peyronie's disease the same as a naturally curved penis? No. A naturally, or congenitally, curved penis is present from puberty, has no plaque, and reflects how the erectile chambers formed. Peyronie's disease, by contrast, develops later in life, when collagen deposits and a palpable fibrous plaque form in the tunica albuginea and pull the erect penis to one side, upward, or downward. That difference — a pathological plaque versus a lifelong shape — is what separates the disease from a harmless anatomical variant.

Because Peyronie's disease is defined by that scar tissue, it differs from other causes of a bent penis in a way a clinician can usually confirm. The plaque is fibrous and often palpable as a firm lump or ridge, forming in the tunica albuginea, the tough fibrous sheath that surrounds the erectile chambers and gives the erect penis its shape. When part of the tunica albuginea scars and loses elasticity, the healthy tissue still expands during an erection while the scarred segment does not, so the penis curves toward the plaque — which is why the curvature is often minimal when flaccid and becomes apparent under the pressure of an erection.

It is worth being clear about what Peyronie's disease is not: it is not a sign that a man has done anything wrong, it is not an infection, and it is not, in itself, cancer. It is a localized fibrosis — an over-active healing response — and because the problem is a plaque that changes how the tissue stretches, the treatments that follow all aim to manage that plaque, reduce the curvature, or work around it.

In short: Peyronie's disease is a connective-tissue disorder in which a fibrous plaque in the tunica albuginea bends the erect penis — distinct from a naturally curved penis, and a recognized, treatable medical condition.

Peyronie's disease is thought to begin when repeated microtrauma to the tunica albuginea triggers an abnormal wound-healing response that deposits fibrous plaque. During an erection or intercourse, minor bending can cause small injuries to the tunica albuginea that most men never notice. In most people these heal cleanly; in men who develop Peyronie's disease, the healing process instead over-produces collagen and scar tissue, which deposits as a plaque that does not remodel back to normal, flexible tissue. This is the leading consensus mechanism, though the exact cause is not fully understood — which is why the aetiology is described as what the disease is thought to arise from rather than a settled trigger.

Why the plaque forms in some men and not others appears to involve how their tissue heals. When the wound-healing response is dysregulated, inflammation persists and collagen is laid down and cross-linked into a stiff plaque rather than being cleared. Genetics seem to influence this: Peyronie's disease is more common in men who also have Dupuytren's contracture, a related fibrous thickening in the hand, which points to a genetic predisposition toward abnormal fibrosis — and helps explain why the condition can appear without any single memorable injury.

Alongside the core mechanism, several factors are associated with a higher likelihood of Peyronie's disease, and the recognized contributing factors are listed below.

• Age. Peyronie's disease becomes more common with age, as tissue heals less efficiently and elasticity declines.
• Genetic predisposition. A family history of Peyronie's disease or of related fibrous conditions such as Dupuytren's contracture increases the likelihood of developing it.
• Connective-tissue disorders. Conditions that affect how the body forms and remodels collagen are linked to a higher risk of abnormal plaque formation.
• Penile trauma. A single significant penile trauma, or repeated microtrauma over time, can trigger the wound-healing response that deposits plaque.
• Associated health conditions. Peyronie's disease has been observed more often in men with certain conditions such as diabetes and some vascular problems, though these associations do not establish a direct cause.

These factors describe risk, not destiny: many men who develop Peyronie's disease have no obvious risk factor, and having one does not make it inevitable. The consistent picture is an abnormal wound-healing response to microtrauma, shaped by genetic and tissue-healing tendencies, that deposits the plaque. The deeper mechanisms and the full list of what causes Peyronie's disease are covered in a dedicated guide.

In short: Peyronie's disease is thought to arise when microtrauma to the tunica albuginea triggers an abnormal wound-healing response that deposits fibrous plaque — with age, genetics, and connective-tissue tendencies raising the risk.

The symptoms of Peyronie's disease centre on penile curvature, but they present differently from man to man depending on where the plaque sits and how large it is. The condition presents most obviously as a bend in the erect penis and often includes a palpable plaque or lump felt through the skin; some men also notice pain early on, a change in shape or length, or difficulty with erections. Because the symptoms vary with plaque location and severity, a man may have one prominent symptom or several together.

The individual symptoms of Peyronie's disease are described below.

Penile curvature

Curvature is the hallmark symptom and the one most men notice first. Because the plaque prevents part of the tunica albuginea from stretching, the penis curves toward it — upward, downward, or to one side — and the degree varies widely.

A palpable plaque or lump

Many men can feel a firm area, ridge, or lump under the skin of the shaft. This palpable plaque is the scar tissue itself and is one of the signs a clinician looks for.

Painful erection

A painful erection is common in the early, acute phase and usually eases as the disease stabilizes. Pain that persists into the stable phase is worth discussing with a clinician.

Penile shortening and indentation

Because the plaque shortens and stiffens one segment of tissue, the disease can cause penile shortening and a localized indentation where the plaque sits.

Hourglass or narrowing deformity

When plaque spans the shaft it can produce an hourglass deformity or a hinge effect, where the penis narrows or buckles at the plaque, which can affect rigidity above that point.

Erectile dysfunction

Erectile dysfunction may occur alongside Peyronie's disease — because the deformity interferes mechanically or because anxiety affects erections. It is a possible associated symptom, not a universal one.

Two points keep this list honest: symptoms often change over time — pain tends to feature in the early phase, while curvature and any lump persist — and a symptom's presence does not predict its severity. Because the Peyronie's disease symptoms vary so much, a proper description comes from a clinical examination, not self-comparison: a change in shape, a new lump, or an hourglass deformity should be assessed rather than assumed.

In short: penile curvature is the defining symptom of Peyronie's disease, usually with a palpable plaque, and it may cause pain, shortening, an hourglass deformity, or erectile difficulty — with the mix varying by plaque location and severity.

Peyronie's disease progresses through two recognized phases: an acute, active phase followed by a chronic, stable phase. In the acute phase the disease is still developing — inflammation is present, erections may be painful, and the curvature can change month to month as the plaque forms. Over a period that generally runs from several months to roughly a year and a half, it then stabilizes: the pain often resolves, the plaque may calcify, and the curvature settles into a fixed shape. Which phase a man is in matters, because it guides which treatments are appropriate.

So will Peyronie's disease get worse over time? Honestly, it can during the active phase — the curvature may increase while the plaque forms — but in most men the disease does not progress indefinitely; it usually reaches a stable point and stops changing, and in a minority the curvature partially improves on its own. It rarely resolves completely without treatment, which is why watchful monitoring in the acute phase is legitimate while the picture is still changing. The two phases contrast as shown below.

This logic sets up the treatment sections below: the inflammatory acute phase is where non-surgical approaches — monitoring, oral therapy, injections, and traction — are generally considered, while surgery is reserved for the stable phase once the curvature has settled and calcified. Operating while the disease is still active risks correcting a curve that then keeps changing, which is why timing follows the phase.

In short: Peyronie's disease progresses from an acute, inflammatory phase, when curvature can change and non-surgical options are used, to a chronic, stable phase, when the curve settles and surgery is considered.

Peyronie's disease is diagnosed by a urologist, primarily through a medical history and a physical examination, sometimes supported by imaging. The urologist takes a history of the symptoms and examines the penis, feeling for the palpable plaque that signals scar tissue. Because the curvature appears during an erection, the doctor may assess the erect penis directly to measure it accurately; when more detail is needed, a penile ultrasound images the plaque and blood flow, and an in-office injection can produce an erection so the curve can be measured precisely.

The typical diagnostic pathway for Peyronie's disease follows the steps below.

1. Medical history. The urologist asks about how and when symptoms began, whether there was any penile trauma, the pattern of pain and curvature, and the effect on erections and intimacy.
2. Physical examination. The clinician examines the penis and palpates the shaft to locate and characterize the plaque, which is often the key diagnostic finding.
3. Curvature measurement. Because the deformity shows during an erection, the doctor measures the curvature on the erect penis — sometimes from a photograph the patient provides, sometimes using an in-office intracavernosal injection test to produce an erection.
4. Penile ultrasound (when indicated). Ultrasound images the plaque, shows whether it has calcified, and assesses blood flow, which is useful when erectile function is also a concern.

If you notice a new curve, a lump, painful erections, or a change in penile shape, you should see a urologist rather than wait: an early assessment establishes the diagnosis, rules out other causes, and identifies the phase, which guides which treatments are suitable. This is not a condition to self-diagnose from photographs online. On this page the clinical claims are reviewed by Danamedic's medical advisor, Dr. Jørn Ege Siana, a plastic surgeon, but a review of general information is not a substitute for a personal evaluation.

In short: a urologist diagnoses Peyronie's disease from history and physical examination, measures the curvature on the erect penis, and may image the plaque with ultrasound — and a new curve, lump, or painful erection is a reason to seek evaluation.

The treatment options for Peyronie's disease include watchful waiting, oral therapy, intralesional injections, penile traction therapy, vacuum and topical treatments, and surgery — ranging from doing nothing actively to a major operation. No single treatment is right for everyone; the choice depends on the phase, the severity of the curvature, whether erections are affected, and how much the condition bothers the individual. The consensus among urological guidelines is to match the least invasive appropriate option to the case, reserving surgery for stable disease with significant deformity. Each class is described objectively below, with an honest note on its evidence.

Watchful waiting (active surveillance)

Watchful waiting is appropriate for mild, non-progressing disease that does not interfere with function or intimacy. Because a minority of cases improve or stabilize on their own, monitoring avoids over-treating a curve that may not need intervention — a legitimate first step, especially during the acute phase.

Oral therapy

Oral options used for Peyronie's disease include pentoxifylline and PDE5 inhibitors, and historically vitamin E, Potaba, and colchicine. Honestly, the evidence for oral therapy is limited and guidelines give oral agents only modest support: they may reduce symptoms in some men but are not reliable curvature correctors, and are used as an early or adjunctive measure.

Intralesional injections

Injections deliver medication directly into the plaque. Collagenase clostridium histolyticum, marketed as Xiaflex, is the only drug that is FDA-approved specifically for Peyronie's disease — an accurate fact about that medication. Verapamil and interferon alpha-2b are also injected in some protocols, generally for men with a stable, defined curvature.

Penile traction therapy

Penile traction therapy is the leading non-surgical, mechanical option, in which a worn device applies sustained tension over months. Its evidence — strongest for curvature — is examined in the next section on penile traction for Peyronie's disease. It complements other options rather than acting as a stand-alone cure.

Vacuum and topical treatments

Vacuum devices and topical treatments are sometimes used, but the evidence for them in curvature correction is limited and largely adjunctive; they are not established primary treatments.

Surgery

Surgery is reserved for stable disease with significant deformity, or when non-surgical options have not helped enough. It is the most definitive option for a fixed curve and is covered in its own section below.

Set side by side, these classes complement rather than compete: the disease is often managed in a sequence that starts conservatively and escalates only as needed. The comparison below summarizes how they differ on the axes that usually decide the choice.

The honest summary is that Peyronie's disease can be treated but rarely "cured" in the sense of erasing the plaque; the realistic goal is to reduce curvature, relieve symptoms, and preserve function. Which option — or sequence — fits depends on the individual, which is why the deeper guides to the full Peyronie's disease treatment options, to Peyronie's disease medication such as Xiaflex, verapamil, and injections, and to the best treatment for Peyronie's disease each explore one path further. No responsible source can call any one option universally best.

In short: the treatment options for Peyronie's disease range from watchful waiting and oral therapy to injections, traction, and surgery — each with a different phase, invasiveness, and evidence base, and none universally "best."

Peer-reviewed clinical studies show that penile traction therapy can significantly reduce the penile curvature of Peyronie's disease, while the evidence for other outcomes is more limited and should be read carefully by claim type. Reading for curvature first, the most authoritative synthesis is a 2023 systematic review and meta-analysis by Almsaoud and colleagues, published in Translational Andrology and Urology (PMID 38106680), which found a significant reduction in penile curvature (p=0.037) but no significant change in penile length (p=0.53) in the pooled data. Placing the proof beside the claim, the Almsaoud meta-analysis is evidence for curvature only; it did not demonstrate a length benefit and should never be cited as a length result — that misread is the single most common error in reporting traction evidence.

For a Peyronie's-specific randomized trial, Joseph and colleagues, in the Journal of Sexual Medicine (2020, PMID 33223425), studied a mechanical traction device in men with Peyronie's disease. The trial randomized 110 men in a 3:1 ratio and reported that 77% of men improved their curvature and 94% achieved increased length, with a six-month mean length gain of 2.0–2.2 cm (0.8–0.9 in). Joseph therefore supports both a curvature signal and, correctly attributed, a length signal in Peyronie's disease — each figure tied to the study that actually measured it rather than borrowed across claims.

How does traction act on the plaque at all? The mechanism is mechanotransduction — the cellular response to mechanical force. When a device holds sustained tension across the penis, cells in the tunica albuginea convert that mechanical signal into a biochemical one, which stimulates cellular proliferation and, over months, drives collagen synthesis and tissue remodeling. Chung and Brock, in a state-of-the-art review in Therapeutic Advances in Urology (2013, PMID 23372611), survey the use of penile traction therapy in Peyronie's disease within this remodeling rationale. The change is gradual and biologically driven, which is why protocols run over months rather than weeks.

An earlier phase-II prospective study by Gontero and colleagues, published in the Journal of Sexual Medicine (2009, PMID 19138361), specifically tested a penile extender device for the penile curvature that results from Peyronie's disease and reported measurable curvature improvement. Its numbers are small and preliminary, but it is one of the studies that established curvature — not length — as the appropriate target for traction in Peyronie's disease.

Because Peyronie's disease often shortens the penis, length is a fair question — but it must be scoped carefully. In the Joseph trial, 94% of men achieved increased length, and in the general (non-Peyronie's) traction literature length gains commonly fall in the range of 1.3–2.3 cm (0.5–0.9 in) over 3–6 months of daily use. That general range is a traction-length consensus figure — not a Peyronie's-curvature result and not a figure from the Almsaoud meta-analysis, which found no significant length change. On girth, no girth gain is supported by the evidence. On durability, reported improvements are described as maintained at 6–12-month follow-up in the studies that tracked outcomes over time; they should not be called permanent. The evidence by claim type is summarized below, curvature first.

It is worth being honest about the limits: several trials are small or preliminary, and traction is generally studied as one part of Peyronie's care rather than a stand-alone cure. The direction of the evidence is consistent — traction can reduce curvature in Peyronie's disease — but the magnitude is individual and depends on adherence and the stage of disease. As the lower-risk, non-surgical route it is often used alongside injections or surgery; the curvature-specific comparison is developed in penile traction for penile curvature correction.

In short: peer-reviewed clinical studies demonstrate that traction can significantly reduce Peyronie's curvature (Almsaoud, p=0.037; Joseph, 77% improved), while length is scoped separately and girth is not supported — the full evidence base is compiled in the clinical studies and evidence for penile traction hub.

Surgery for Peyronie's disease is reserved for stable, chronic disease with a significant deformity that interferes with function or intimacy, or when non-surgical options have not helped enough — operating on an actively changing curve risks correcting a shape that then keeps changing. It is the most definitive way to correct a fixed curvature, but it carries real trade-offs, and the right procedure depends on curvature severity, penile length, and whether erectile dysfunction coexists. The main surgical options are described below.

Penile plication

Plication corrects curvature by placing sutures on the side of the penis opposite the plaque to straighten it. It is relatively straightforward and reliable for suitable curves, but because it works by shortening the longer side, it can shorten the penis. It is generally chosen for men with good erectile function and less severe curvature.

Plaque incision or excision and grafting

In this approach the surgeon cuts into or removes the plaque and covers the defect with a graft, which restores length on the shortened side and can address more severe curves. It carries its own risk profile, including a risk of postoperative erectile dysfunction, and is typically reserved for more significant deformities.

Penile prosthesis

A penile prosthesis (implant) is considered when significant erectile dysfunction coexists with the deformity, because it corrects the curvature and restores erectile function in one procedure. It replaces erectile tissue function mechanically and is generally chosen when medications for erections are no longer effective.

Every surgical option carries risks weighed against its benefits — plication can shorten the penis, grafting carries a risk of erectile changes, and any procedure involves recovery. Surgery is not the "only cure" for Peyronie's disease and is not usually the first step; it corrects a fixed, stable deformity significant enough to justify an operation, and the decision is made individually with a urologist. The deeper guide to Peyronie's disease surgery covers each procedure and its outcomes in more detail.

In short: surgery for Peyronie's disease is reserved for stable disease with significant deformity — plication, grafting, or a prosthesis — and is chosen with a urologist by weighing curvature severity, length, and erectile function.

Living with Peyronie's disease affects more than the body; it commonly affects a man's confidence, sexual function, and relationships. The physical changes can make intimacy difficult, and the psychological effect is real and well recognized — many men experience anxiety or low mood, and some meet the criteria for depression. This emotional impact is a normal response to a condition that touches something private and important, and the distress a man feels is often as significant as the curvature itself.

The condition also strains relationships, but open communication tends to improve how couples cope: partners are often more understanding than men expect, and talking about the condition rather than withdrawing generally helps both people. Where the burden is heavy, the sources of support below are worth knowing about.

• Talk to your clinician. A urologist can explain the condition, set realistic expectations, and outline treatment — which often reduces anxiety on its own.
• Consider psychological support. A counsellor or therapist, including one experienced in sexual health, can help with the anxiety, low mood, or relationship strain that often accompany the disease.
• Communicate with your partner. Open partner communication about what has changed, and about what treatment involves, tends to protect intimacy better than silence.
• Connect with others. Knowing the condition is common and manageable, and hearing from others who live with it, can reduce the sense of isolation.

It would be dishonest to promise that treatment always restores intimacy exactly, and equally wrong to dismiss how much the condition can weigh on a man. The accurate, hopeful position is in between: Peyronie's disease is common and manageable, and combining medical treatment with psychological and relationship support improves quality of life for most men who seek help. The deeper guides to living with Peyronie's disease and to sex and relationships with Peyronie's disease go further into coping day to day.

In short: Peyronie's disease affects confidence, intimacy, and mood as well as the body — and honest communication, clinical care, and psychological support improve quality of life for most men.

Choosing a traction device for Peyronie's disease should begin with your doctor and then come down to objective criteria: regulatory identity, calibrated and adjustable tension, clinical grounding, biocompatible materials, and comfort that supports long daily wear. If you and your urologist decide traction is appropriate, device use should be under medical guidance, not a self-directed experiment. The criteria below are how any device is best judged — as a category first, and only then as a specific product.

Regulatory identity

A device for a medical condition should be a properly regulated medical device. Look for genuine status such as an FDA-registered medical device and CE Marked. It is important to read these terms precisely, which the note below this list does.

Calibrated, adjustable tension

A good device verifies and adjusts the tension it applies, so the load can progress safely under guidance rather than being fixed or unknown. Calibrated tension is what makes the therapy controllable.

Clinical grounding

Prefer a device whose method is supported by peer-reviewed clinical studies on penile traction therapy, rather than by testimonials alone.

Biocompatible materials and comfort

Materials should be skin-safe, and the fit should support the long sessions the protocol requires. Comfort drives treatment compliance, and compliance is what determines whether traction produces any result at all.

A crucial point of accuracy belongs here, because two regulatory terms are easy to confuse. As noted above, collagenase (Xiaflex) is a drug that is FDA-approved for Peyronie's disease. A traction device is a different product with a different status: the SizeGenetics penile traction device is described as an FDA-registered medical device and is CE Marked, made by Danamedic ApS, the category inventor since 1994. FDA-registered is not the same as FDA-approved or FDA-cleared, and a registered device should never be called FDA-approved; registration is a regulatory status, not proof of any curvature or length result. Judged against the criteria — and never placed first simply because it is ours — the SizeGenetics device meets the regulatory, calibration, materials, and comfort tests, but the right device for any individual is the one a clinician supports and the man will actually wear.

If you and your doctor move ahead, the question of the best traction device for Peyronie's disease is covered in a dedicated comparison, and the device options for this use are set out in the guide to the penile traction device for Peyronie's disease. To read the full product detail, see the SizeGenetics penile traction device directly. In every case the sequence is the same: confirm the diagnosis and phase with a urologist, decide whether traction fits, and only then choose a device that verifies its tension, adjusts safely, and stays comfortable enough to wear through the protocol.

In short: choose a traction device for Peyronie's disease under medical guidance and on objective criteria — regulatory identity, calibrated tension, clinical grounding, materials, and comfort — and keep the device's FDA-registered status distinct from the FDA-approved drug collagenase.

This Peyronie's disease guide organizes the wider library into topic groups and routes you to a deeper guide on each aspect of the condition — symptoms, causes and progression, treatment, traction and devices, self-care, and living with the disease. The grouped guides are listed below; each link activates as its guide ships.

In short: this guide routes to the deeper Peyronie's disease library — symptoms, causes, treatment, traction and devices, self-care, and living with the condition — with each guide activating as it ships.