The severity of Peyronie’s disease does not depend only on the degree of curvature. Penile deformity, erectile function, pain, progression, and the impact on sexual activity are also taken into account.

To answer how to know if Peyronie’s disease is severe, it is not enough to look at the degree of curvature. The angle is important, but it does not tell the whole story, since the condition can present in very different ways.

To assess disease severity, it is necessary to consider the functional impact of the deformity, erection quality, the possibility of penetration, and the course of the condition over time. The phase of the disease is also relevant, since some changes may still be progressing.

The combination of these factors helps to better understand when the disease is severe and guide the most appropriate individualized approach.

How many degrees of curvature are considered severe?

In the clinical literature, an orientative classification is commonly found:

• Mild:less than 30°;
• Moderate:between 30° and 60°;
• Marked or severe:greater than 60°.

A 2025 study in the Journal of Sexual Medicine used these ranges and reinforced that the choice of surgery also depends on the deformity, penile length, erectile function and the patient’s preferences.

However, these categories help describe curvature but are not absolute criteria to define severity or to indicate surgery.

How to Know if Peyronie’s Disease Is Severe?

Assessing the severity of Peyronie’s disease requires more than measuring the curvature angle, since the condition’s presentation varies from patient to patient.

Hourglass deformity or narrowing

Hourglass deformity is characterized by a narrowing at a specific region of the penis, which can compromise stability during erection.

In some cases, this change interferes with penetration even when the curvature angle is not pronounced.

Penile shortening

Peyronie’s disease can also be associated with loss of penile length. This change can result from the fibrosis itself and from the deformity.

Changes in rigidity

Erectile dysfunction can occur in association with Peyronie’s disease. Difficulty obtaining or maintaining an erection sufficiently rigid may be related to vascular changes, the deformity itself, or other factors present in the patient.

When rigidity is compromised, the functional impact of the disease can be greater, regardless of the degree of curvature.

Difficulty during sexual activity

Difficulty or inability to achieve penetration is one of the main indicators of functional impact. A curvature, a narrowing, or an area of instability can make sexual intercourse difficult even without a visually marked deformity.

Does pain mean Peyronie’s disease is severe?

Pain during erection is frequently reported by patients with Peyronie’s disease and may be associated with the active phase of the condition, a period when the fibrotic plaque and the deformity may still be changing.The intensity of pain, by itself, does not measure structural severity.

Significant deformity can also exist without pain. In the stable phase, pain tends to decrease, although the curvature may remain.

Can Peyronie’s disease worsen over time?

Peyronie’s disease can progress with worsening curvature and the appearance of other changes, such as narrowing, penile shortening, and erectile dysfunction.This progression is more frequent in the active phase of Peyronie’s

, when the deformity may still be changing. Duration varies between patients.

However, not all cases show significant progression. In some men, the curvature may stabilize without reaching a pronounced angle and without developing complex deformities or penile instability with a relevant impact on sexual activity.Progression should be monitored on an individual basis

, considering not only the degree of curvature but also anatomical and functional changes over time.

How can the functional impact of Peyronie’s disease be assessed?

• Functional impact can be more relevant than the isolated angle. The following deserve attention:
• Difficulty or inability to penetrate;
• Significant loss of rigidity;
• Pain that interferes with sexual life;
• Deformity that prevents a satisfactory sexual relationship;

Significant impact on self‑esteem.It is important to note that the

presence of symptoms or changes that cause concern may justify scheduling a medical evaluation, without needing to wait for possible progression of the condition.

How does the specialist assess severity?Urological assessment considers medical history, physical examination, erectile function, and the evolution of the deformity. The specialist evaluates when the curvature began, whether it is progressing, whether there is pain, changes in erection, a palpable plaque, narrowing or loss of length.

The curvature can be documented by photographs of the erection or, when indicated, by a pharmacologically induced erection.

In selected cases, penile Doppler ultrasound

can help evaluate plaques, calcifications, and blood flow, especially when erectile dysfunction is present.

Does Peyronie’s disease require surgery?Not all cases require surgical treatment

. The indication depends on several factors, such as erectile function, penile length, the complexity of the deformity, functional impact and the patient’s expectations.

The European Association of Urology (EAU) recommends that surgery be considered mainly when the disease is in a stable phase and the deformity significantly compromises sexual intercourse. Thus, the decision should not be based solely on the degree of curvature.

A penile prosthesis, in turn, may be considered when there is significant erectile dysfunction that does not respond adequately to medical treatment and there is a clinical indication for this approach. A marked curvature, by itself, does not mean that a prosthesis is necessary.

In patients whose deformity does not cause significant difficulty with penetration, important loss of rigidity, or a relevant impact on sexual life, surgery may not be indicated.

In these cases, management should be individualized according to disease progression and the symptoms presented.

What are the treatment options for more advanced cases?

• Depending on the phase and clinical characteristics, the following may be considered:
• Monitoring and symptom control;
• Adjunctive therapies, when indicated;
• Curvature correction surgery;
• Reconstructive surgery for complex deformities;

Penile prosthesis when there is significant erectile dysfunction and a clinical indication.

The approach should always be individualized.

When to seek a specialist evaluation?In the presence of signs such as curvature, a palpable plaque, persistent pain, narrowing, loss of length, or difficulties with erection or sexual activity, it may be helpful to discuss the situation with a doctor, who can assess the need for monitoring or treatment.