What Is Induration Penis Plastica?
Induration penis plastica is the medical term for Peyronie's disease, a connective tissue disorder that affects the penis. It occurs when fibrous, scar-like plaques build up within the tunica albuginea, the elastic sheath surrounding the erectile chambers. This buildup causes the penis to bend, narrow, or develop hourglass-like indentations during an erection. The condition can be painful and may make sexual intercourse difficult or impossible.
More from this site
Keep reading the latest coverage
The disease progresses through two phases. The acute phase involves inflammation and plaque formation, often accompanied by pain during erections. The chronic phase follows, when the plaque stabilizes and curvature becomes fixed. Not every case requires aggressive treatment; mild curvature without pain or sexual dysfunction may simply be monitored.
Symptoms and Physical Signs
The hallmark of induration penis plastica is a noticeable bend or deformity during erection. Other signs include:
- A firm lump or band along the shaft
- Pain during intercourse or spontaneous erections
- Shortening of the penis
- Penile narrowing or hourglass deformity
- Difficulty maintaining an erection
The plaque can form on the top (causing upward curvature), the bottom (downward curvature), or on the sides. In some cases, calcification develops within the plaque, making the tissue even harder.
Known Causes and Risk Factors
The exact cause remains unclear, but several factors are strongly associated with the development of induration penis plastica:
- Microtrauma: Repeated bending or injury during intercourse or athletic activity can trigger inflammation and scar formation.
- Genetic predisposition: Men with a family history of Peyronie's disease are at higher risk.
- Connective tissue disorders: Conditions like Dupuytren's contracture often coexist.
- Age: The incidence rises in men over 40.
- Diabetes and vascular disease: Poor blood flow and altered healing may contribute.
Some researchers suspect an autoimmune or oxidative stress component, but no single mechanism has been proven. The disease is not contagious or linked to cancer.
Diagnosis and Clinical Evaluation
A urologist typically diagnoses induration penis plastica through a physical examination, palpating the penis for plaques and assessing curvature during a pharmacologically induced erection. The following diagnostic tools may be used:
| Method | What It Reveals | When It's Used |
|---|---|---|
| Penile ultrasound | Plaque location, size, calcification | Standard first-line imaging |
| Doppler ultrasound | Blood flow, erectile function | When erectile dysfunction is suspected |
| MRI | Detailed plaque architecture | Complex or surgical planning cases |
| Penile X-ray | Calcified plaques | When hardness suggests calcium deposits |
Treatment Options and Management
Treatment depends on the disease phase, severity of curvature, and impact on sexual function. Options include:
- Observation: Mild cases without progression may only need monitoring.
- Oral medications: Pentoxifylline, vitamin E, or tamoxifen are sometimes tried, though evidence is mixed.
- Intralesional injections: Collagenase clostridium histolyticum (CCH) can dissolve plaque. Interferon or verapamil injections are less commonly used.
- Penile traction therapy: Devices designed to stretch the penis and reduce curvature over months.
- Vacuum erection devices: Help maintain penile length and rigidity.
- Surgery: Reserved for stable curvature lasting at least 12 months. Procedures include plaque incision or excision with grafting, penile plication (shortening the opposite side), or penile implant placement when erectile dysfunction coexists.
No single treatment works for everyone, and recurrence after surgery is possible. Shared decision-making with a urologist is essential.
Living With Induration Penis Plastica
The psychological toll of Peyronie's disease should not be underestimated. Anxiety, depression, and relationship strain are common. Support groups and counseling can help. Early evaluation by a specialist offers the best chance of slowing progression and preserving sexual function.