Peyronie’s disease is permanent in most cases. Only about 13% of men see spontaneous improvement without treatment, while roughly 40% to 47% remain stable and 21% to 40% get worse over time. The good news is that even though the underlying plaque rarely disappears on its own, treatments can significantly reduce curvature and restore sexual function.
Why Most Cases Don’t Resolve on Their Own
Peyronie’s disease starts when repeated minor injuries to the penis trigger an abnormal healing response. Instead of repairing normally, the tissue lining called the tunica albuginea produces excess collagen that hardens into a flat plaque or scar. Over time, this scar tissue can progress from simple collagen buildup to cartilage-like or even bone-like changes, which is why established plaques are so difficult for the body to reabsorb.
Early research in the 1970s suggested that as many as 50% of men might recover spontaneously, but that finding has never been replicated. The most commonly cited modern data paints a different picture: about 13% improve, 47% stay the same, and 40% worsen. One study of 307 men tracked over eight months found a spontaneous resolution rate of less than 1%, with 30% of cases progressing during that window. Younger men who seek evaluation within six months of symptom onset have slightly better odds of natural improvement, but even in that group, two-thirds remained stable rather than getting better.
The Two Phases of the Disease
Peyronie’s disease moves through two distinct stages, and understanding where you are in that timeline matters for treatment decisions.
The first is the acute (inflammatory) phase, which typically lasts 12 to 18 months from when symptoms first appear. During this period, the plaque is actively forming. Pain is common, either at rest or during erections, and curvature may change from month to month. Because the disease is still evolving, most doctors focus on slowing progression and managing pain rather than correcting curvature surgically.
The second is the chronic (stable) phase. Pain usually fades, and the curvature stops changing. The standard markers for entering this phase are resolution of pain and stable curvature for at least three months. Once you’re in the chronic phase, the plaque is mature and unlikely to resolve on its own. This is when more definitive treatments, including surgery, become options.
How It Affects Erections and Mental Health
Curvature is the most visible symptom, but it’s far from the only one. A nationwide analysis of nearly 177,000 U.S. patients found that 28% already had erectile dysfunction at the time they were diagnosed with Peyronie’s disease. Within one year of diagnosis, an additional 15% developed new erectile problems. Depression also tracks closely with the condition: about 19% of men showed depressive symptoms within a year of diagnosis. The combination of physical changes, sexual difficulty, and psychological distress is what drives many men to seek treatment even when their curvature is moderate.
Treatments That Reduce Curvature
While the plaque itself is permanent in most men, the curvature it causes can be meaningfully reduced. Treatment options fall into three categories: injections, traction therapy, and surgery.
Injection Therapy
The most studied injectable treatment uses an enzyme that breaks down collagen within the plaque. It’s approved for men with stable disease and curvature between 30 and 90 degrees. In clinical studies, the median curvature improvement was 20 degrees, and about 57% of patients met the threshold for treatment success (a reduction of 20 degrees or more). The injections are given in a series of office visits and paired with manual modeling exercises performed by both the clinician and the patient at home. Other injectable options include interferon and verapamil, though the evidence supporting them is weaker.
Penile Traction Therapy
Traction devices apply a gentle, sustained stretch to the penis over weeks or months. Older protocols required three to eight hours of daily use for up to six months, which was difficult for most men to sustain. Newer devices have shown results with 30 to 90 minutes of daily use over three months. Traction is sometimes used alongside injection therapy or as a standalone option for men who prefer a noninvasive approach, though results tend to be modest compared to injections or surgery.
Surgery
Surgery is reserved for men with stable disease, typically for at least 12 months, who haven’t responded to less invasive options or who have severe curvature. There are two main approaches. Shortening (plication) surgery tightens the side of the penis opposite the plaque to straighten it. It’s simpler and carries a lower risk of erectile problems (about 9% in long-term studies), but it does result in some penile shortening. Grafting surgery removes or cuts into the plaque and patches the area with tissue. It achieves greater curvature correction and is better suited for severe deformities, but about one-third of men experience some degree of erectile difficulty afterward, and more of those men need medication to maintain erections.
Both approaches have initial success rates around 87% to 90%, which settle to roughly 83% at three to four years of follow-up. Recurrence rates are comparable at about 17% for both techniques. For men who also have significant erectile dysfunction, a penile prosthesis can address both the curvature and the erection problem in one procedure.
What Doesn’t Work
Several oral supplements and medications are still commonly marketed for Peyronie’s disease despite evidence against them. The American Urological Association specifically recommends against vitamin E, tamoxifen, omega-3 fatty acids, and combinations of vitamin E with L-carnitine. None of these have shown meaningful benefit for curvature or plaque reduction in clinical studies. Shockwave therapy is another treatment that generates interest, but the evidence shows it helps with pain relief only. It does not reduce curvature or plaque size in a clinically meaningful way, and the AUA recommends against using it for those purposes. For pain during the acute phase, standard anti-inflammatory medications are the first-line option.
What “Permanent” Really Means in Practice
The plaque that forms in Peyronie’s disease is, for most men, a lasting structural change. Spontaneous resolution is uncommon, and waiting years in hopes of improvement often means the disease progresses. But “permanent plaque” does not have to mean “permanent curvature” or “permanent sexual dysfunction.” The curvature itself, which is what actually causes functional problems, can be reduced by 20 degrees or more with injection therapy and corrected even further with surgery. Pain, which is the most distressing early symptom, almost always resolves on its own within 12 to 18 months regardless of treatment.
The practical takeaway is that early evaluation matters. Men who are seen within six months of symptom onset have better odds of improvement, and starting treatment during the acute phase can help prevent the disease from worsening. Once the disease stabilizes, the full range of corrective options becomes available.