It is understandable that most men will be alarmed to find that the penis has developed a bend or a hard lump, or a curvature which is increasing which was not there before. Peyronie’s disease, in which fibrous scar tissue develops within the tunica albuginea, the tough outer sheath of the penis, resulting in curvature, shortening and often pain, is one of the most undertreated conditions in all of urology because so many men suffer in silence, too embarrassed to seek help. But the psychological impact of Peyronie’s disease is often disproportionate to its medical severity.
Peyronie’s disease is more common than most people realise. It is estimated to affect between three and nine percent of adult men. It is not rare, it is not a sign of cancer and it is not a consequence of lifestyle choices, it is a connective tissue disorder with a specific biological mechanism, a recognised natural course and a range of truly effective treatments. The ability to make the right management decisions depends on understanding when to treat, with what to treat, and the difference between the active acute phase and the stable chronic phase.
The erectile chambers are surrounded by a cylindrical layer of tough, fibrous tissue called the tunica albuginea, which also covers the penis and provides rigidity for the erect penis. Usually, this sheath is perfectly elastic and symmetrical, allowing the penis to expand evenly when it gets erect. In Peyronie’s disease, a plaque of localised fibrous scar tissue develops within the tunica albuginea at a specific site, producing a segment that is inelastic relative to the surrounding healthy tissue. When the penis is erect and filled with blood, the healthy elastic portions of the penis expand normally, but the inelastic plaque does not, causing the penis to bend toward the plaque and resulting in the characteristic curvature of the penis.
Peyronie’s disease goes through two different phases. In the acute phase (usually six to eighteen months), the plaque is actively developing, the curvature may be changing, erections are often painful and treatment is mainly aimed at limiting progression. In the stable phase, when the curvature has ceased to change, pain usually resolves, and the plaque has matured to its final form, definitive treatment to correct the deformity can be most accurately planned and performed. In general, major surgical correction is avoided in the acute phase as the natural history of the disease is not yet complete.
It is important to distinguish peyronie’s disease from congenital penile curvature which is present from birth or at first erection without any plaque, pain or acute onset and is usually corrected surgically at a young age. It is also important to realise that not all penile curvature is Peyronie’s, frenulum breve causes downward curvature with no plaque in the tunica albuginea and this distinction matters as the treatment is entirely different. Accurate diagnosis is therefore the fundamental basis for appropriate management.
The symptoms of Peyronie’s disease evolve through the acute and stable phases, and the pattern of onset and progression is important to recognise for both diagnosis and timing of treatment.
The exact mechanism of Peyronie’s disease is not fully understood, but the most widely accepted model is microtrauma to the tunica albuginea during sexual activity, small tears in the tough fibrous sheath that occur during vigorous intercourse or other penile bending forces. In most men these micro-traumas heal normally and have no consequence. In men with Peyronie’s disease, an abnormal healing response occurs during which the normal repair process leads to excess fibrous tissue and the eventual formation of a dense collagen plaque at the site of the initial injury.
This abnormal response of healing is thought to be related to individual genetic susceptibility. Peyronie’s disease is known to be associated with Dupuytren’s contracture, a similar fibrosing condition of the hand, and with plantar fascia fibromatosis. This association suggests an underlying systemic predisposition for abnormal connective tissue wound healing in the individuals affected. Men with a first-degree relative who has Peyronie’s disease are at an increased risk of developing it themselves. It is more common in men over the age of 40 reflecting both the cumulative microtrauma from years of sexual activity and age related changes in the collagen composition of the tunica albuginea that may predispose to abnormal healing. The risk is somewhat higher in men who have diabetes and in men taking certain medications, such as beta blockers. Importantly, Peyronie’s disease is not caused by any sexually transmitted infection, is not contagious, and is not a consequence of masturbation or sexual activity in itself, only of the specific injury-healing response pattern in susceptible individuals.
Once a diagnosis of Peyronie’s disease has been established, the goal of management in the acute phase is to mitigate the severity of the fibrotic response and to prevent maximal plaque maturation. Thus, treatment in the acute phase is aimed at the actively forming disease rather than the established scarring. In this context several measures and treatments are applied.
During the acute phase, sexual positions or activities that put excessive bending or axial stress on the partially erect or flaccid penis should be avoided. Further microtrauma at the plaque site may stimulate additional fibrotic activity. Penile traction therapy, the regular daily use of a gentle penile stretching device, has emerging evidence for both reducing the progression of curvature and preserving penile length during the acute phase, and is generally recommended as an adjunct to medical treatment. Oral vitamin E and pentoxifylline are commonly used with a moderate evidence base for antifibrotic effect, and given their low side-effect profile, are reasonable adjuncts even in the absence of robust trial evidence. For maximum effect, medical treatments with intralesional injection of collagenase or verapamil are used in the stable phase and not in the acute phase. Smoking cessation is specifically advised as smoking impairs tissue healing and vascular health in a way considered to be detrimental to fibrotic tissue disease. The table below summarises the treatment options available by disease phase:
| Treatment | Phase | Indication | Effect |
| Oral vitamin E / pentoxifylline | Acute | Adjunct to other treatment; widely used | Modest antifibrotic effect; low risk; evidence limited |
| Intralesional collagenase (Xiaflex) | Stable | Moderate curvature 30–90°; palpable plaque | Enzymatic plaque dissolution; reduces curvature by ~30–35% |
| Intralesional verapamil | Stable | Alternative to collagenase; moderate curvature | Reduces plaque stiffness; modest curvature improvement |
| Penile traction therapy | Both | Acute loss of length; moderate curvature | Improves length and curvature when used consistently |
| Plication (Nesbit or 16-dot) | Stable | Mild–moderate curvature; adequate penile length | Straightens penis by shortening convex side; modest length loss |
| Plaque incision/excision + graft | Stable | Severe curvature (>60°); adequate erectile function | Best curvature correction; may temporarily affect erection |
| Penile prosthesis + modelling | Stable | Severe curvature + significant ED | Treats both curvature and ED simultaneously; gold standard for this combination |
The most important general message is to seek specialist assessment early in the disease course and in the acute phase rather than waiting for the disease to have fully matured. Early assessment results in phase-appropriate treatment and ensures that surgical planning in the stable phase is based on a full understanding of the patient’s individual deformity, erectile function and expectations.
Peyronie’s disease is not medically dangerous, in the sense of threatening general health or life. The plaques are entirely benign and carry no cancer risk. However, it is an important condition in terms of its impact on sexual function, quality of life and psychological wellbeing, with published studies showing depression and relationship difficulties in the majority of affected men, often out of proportion to the physical severity. It is therefore a condition that needs to be taken seriously and managed appropriately, and not dismissed as a minor problem simply because it is not life threatening. There are good treatments available that can markedly improve or completely correct the curvature and restore satisfactory sexual function in the majority of men.
The clinical course varies. Approximately 10% to 15% of men experience spontaneous improvement of their curvature over time, most often during the transition from the acute phase to the stable phase. Most untreated men are either stable (curvature not improving or worsening after the acute phase) or experience some progression. Less common but does happen in a subset is severe worsening without any intervention The crucial implication is that waiting indefinitely for spontaneous resolution is generally not a reliable strategy, especially for men with significant curvature affecting intercourse; specialist assessment allows appropriate phase-matched treatment to be initiated rather than time lost during a window of opportunity for intervention.
There is a genetic component that is known. Dupuytren’s contracture is a similar fibrosing condition that results in contracture of the fingers and is associated with Peyronie’s disease. Both conditions share pathways of genetic susceptibility of abnormal wound healing of connective tissue. Men with a first-degree relative with Dupuytren’s contracture or Peyronie’s disease are at increased risk compared with the general population. But the presence of this genetic predisposition does not mean that the disease will necessarily develop, it is necessary to have a specific triggering microtrauma on the background of genetic susceptibility. The hereditary component does not change management.
Plication and plaque incision represent two fundamentally different surgical approaches to correcting Peyronie’s curvature, with different trade-offs. Examples of plication procedures include Nesbit or 16-dot plication which involve shortening the convex side of the penis opposite the plaque and equalising both sides to straighten the penis. Technically, this approach is easier and has a lower risk of erectile dysfunction, but there is a modest loss of penile length. This technique works best for men with an adequate penile length and a mild to moderate curvature. Plaque incision or excision with grafting consists of incising or excising tissue directly at the plaque site, thus releasing the inelastic tethering and placing a tissue graft to fill the defect. This provides better correction of the curvature with less shortening of the penis, but has a slightly higher risk of temporary erectile dysfunction. It is better for severe curvature and for men for whom length preservation is a priority.
For Peyronie ’s disease , surgery should not be performed until the disease has been stable 3 to 6 months , ie , the curvature has not changed and pain has resolved . Operating during the acute phase when the plaque is still actively forming carries higher risk of suboptimal results and potential worsening. Once stability is confirmed, surgery is appropriate consideration when: curvature is severe enough to make intercourse impossible or very difficult; curvature is causing significant distress and has not improved with non-surgical treatment; or when erectile dysfunction coexists at a level making medical treatment alone inadequate. The particular procedure depends on the degree of curvature, erectile function, and penile length.
Peyronie’s disease does not directly affect sperm production, testosterone levels or testicular function, and therefore does not cause infertility in the biological sense. However, if the curvature is so great as to make comfortable intercourse impossible or that ejaculation into the vaginal vault cannot occur, this mechanical barrier to natural conception is a functional fertility problem that would be removed by successful surgical correction of the curvature. The concern, when present, is mechanical and not physiological, so men with Peyronie’s disease who are trying to conceive should not assume their fertility is biologically impaired.
No. Peyronie’s disease is the formation of a benign fibrous scar tissue within the tunica albuginea , the plaque . There is no cancer risk or malignant potential. Does not increase risk of developing cancer at the site, is not related to penile cancer and will not turn into cancer. This reassurance is important as the discovery of an unexpected penile lump causes significant anxiety about malignancy in many men and a large part of the initial Peyronie’s disease consultation is to confirm the benign nature of the plaque. Any penile lesion that is ulcerating, bleeding, or on the surface of the penile skin rather than palpable within the shaft needs separate assessment to rule out penile cancer. The deep, firm intra-tunica plaque of Peyronie’s disease is not a skin lesion and is a fundamentally different finding.
Peyronie’s disease is not contagious or transmissible, and it cannot be passed on to a sexual partner. It is an individual connective tissue disorder due to a specific biological healing response in a susceptible individual. Therefore, there is no risk of transmission to a partner through sexual activity and partners do not need any medical evaluation based on their partner’s diagnosis of Peyronie’s disease unless they have independent concerns about penile changes of their own.
Penile traction therapy is done by wearing a specially designed external stretching device on the penis for a prescribed period each day, typically between two and eight hours, applying gentle consistent tensile force along the penile axis. Over months of routine use, the biological response of fibrous tissue cells to sustained mechanical force, termed mechanotransduction, is thought to induce a gradual remodelling of the fibrous plaque tissue. Published data suggest that regular use of penile traction therapy during or after the acute phase may decrease curvature by approximately fifteen to twenty percent, preserve or partially restore penile length, and may improve the outcome of subsequent surgical correction. Its efficacy is largely dependent on regular use, intermittent or brief use provides little benefit.
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