The most telling sign of Peyronie’s disease is a new curve in your penis that wasn’t there before, often accompanied by a hard lump you can feel just beneath the skin. Unlike a slight natural bend that many men have, Peyronie’s develops over weeks or months in adulthood and typically gets worse before it stabilizes. Estimates of how common it is vary widely, from under 1% of men who’ve been formally diagnosed to as high as 13% when you include anyone with at least one symptom, so it’s far from rare.
The Three Core Symptoms
Peyronie’s disease produces three hallmark signs, and you may notice one, two, or all three.
A palpable plaque. This is the defining feature. Scar tissue forms inside the tough outer sheath of the penis, and you can often feel it as a flat lump or a band of firm tissue under the skin. It may feel tender to the touch. The plaque can sit on the top, bottom, or side of the shaft, and some men develop more than one. When plaques form on both sides or along the internal wall between the two erectile chambers, the result can be shortening rather than curvature.
A visible curve. As the scar tissue prevents one section of the penis from expanding normally during an erection, the penis bends toward the plaque. The curve can go upward, downward, or to either side. In some cases, instead of a smooth arc, the penis develops a narrow “waist” or hourglass shape at the plaque site, or it hinges at an angle rather than curving gradually.
Pain. Many men feel pain during erections, and sometimes when the penis is soft as well. This pain tends to improve on its own within one to two years, even if the curve remains.
How It Progresses: Acute and Chronic Phases
Peyronie’s disease moves through two stages, and knowing which one you’re in matters because it changes what treatment looks like.
The acute phase typically lasts 3 to 18 months. During this window, the curvature usually gets worse, new plaque may form, and erections are more likely to hurt. Doctors have traditionally used pain as the main marker of this active phase, but more recent thinking focuses on whether the deformity is still changing. If your curve is progressing month to month, the disease is likely still active regardless of whether it hurts.
The chronic phase begins once symptoms have been stable for at least three months and pain has resolved. The curve and any shortening are still there, but they’ve stopped getting worse. When calcium deposits develop inside the plaque, that’s a strong signal the disease has settled into this stable phase. Treatment options differ significantly between the two stages: the acute phase is generally managed conservatively with traction devices and oral medications, while the chronic phase is when injections or surgery become options.
How to Check Yourself
You can do a basic self-exam that covers the same ground a urologist would during an office visit. Gently feel along the shaft of your penis while it’s soft, pressing lightly with your thumb and forefinger. You’re looking for any firm lumps, thickened bands, or areas of tenderness. Note where you find them: top, bottom, left, right. Some plaques are obvious, others are subtle enough that they’re easier to detect during a partial erection when the surrounding tissue is stretched.
If you notice a curve, try to document it. Taking a photo during a full erection (from directly above and from the side) gives you a baseline you can compare against over the coming weeks. Pay attention to the direction of the curve, whether there’s any narrowing or indentation, and whether your overall length seems different. These are exactly the details a urologist will ask about: direction of curvature, presence of an hourglass shape, whether the curve interferes with sex, whether you have pain with or without erections, and whether you’ve noticed any change in rigidity.
Peyronie’s vs. Normal Curvature
A slight curve during erection is completely normal and has been present since puberty for many men. The key differences with Peyronie’s are timing and texture. Peyronie’s curvature appears in adulthood, often between your 40s and 60s, and it changes over months. You can also feel the scar tissue that’s causing it. A congenital (lifelong) curve has no palpable plaque and has always been there. If you’ve had a bend your whole adult life and there’s no lump, that’s almost certainly not Peyronie’s.
What Happens at a Doctor’s Visit
A urologist can usually confirm Peyronie’s disease with a medical history and a physical exam alone, specifically by feeling for the plaque. No blood test or biopsy is needed. In many cases, that’s enough for a diagnosis.
When more detail is needed, ultrasound is the go-to imaging tool. It’s done with the penis soft and can measure the plaque in three dimensions, pinpoint its exact location, and detect calcium deposits that indicate stable disease. Ultrasound picks up calcified plaques with 100% sensitivity. If the plaque doesn’t show on the initial scan, the exam may be repeated after an injection that triggers an erection, which stretches the tissue and makes smaller plaques visible. That same injection-assisted exam also allows the doctor to assess blood flow and erectile function using Doppler imaging, since erectile difficulties and Peyronie’s frequently overlap.
Risk Factors Worth Knowing
Peyronie’s becomes more common with age, particularly after 40. Prevalence among men over 40 screened in one U.S. study was 8.9%, and a large Italian study found 7.1% of men aged 50 to 69 were affected. Rates climb even higher when other conditions are present: about 7.9% of men with erectile dysfunction have Peyronie’s, and that figure jumps to 20.3% among men who are both diabetic and have erectile dysfunction.
There’s also a notable connection to Dupuytren’s contracture, a condition where scar tissue thickens in the palm of the hand, pulling the fingers inward. In one study of 172 men who initially presented with Peyronie’s, 29% were also diagnosed with Dupuytren’s. A related condition called Ledderhose disease, which causes similar thickening in the sole of the foot, was also significantly more common in men who had both. All three conditions involve the same type of abnormal scar tissue formation, so if you have thickening in your hands or feet alongside a new penile curve, the connection is worth mentioning to your doctor.
Family history plays a role as well. Men with a family history of Dupuytren’s contracture are at higher risk, and at least one study found blue eye color was significantly more common in this overlapping group, suggesting a genetic component tied to Northern European ancestry.
Signs That Need Attention
Not every case of Peyronie’s requires treatment. Some men have mild curvature, no pain, and no difficulty with sex. But certain patterns warrant a prompt visit to a urologist: a curve that’s worsening from month to month, pain that persists beyond the first year or two, difficulty with penetration due to the angle or instability of the erection, or noticeable loss of length. Erectile problems that develop alongside the curve are also worth flagging, since addressing both together often leads to better outcomes than treating them separately.