A slight curve to the penis is normal and rarely needs treatment. But if your curvature is new, worsening, or making sex difficult or painful, there are effective ways to reduce it. The right approach depends on what’s causing the curve and how long you’ve had it.
What’s Causing the Curve
There are two main reasons a penis curves significantly. The first is congenital curvature, meaning you’ve had the bend your whole life. This results from how the penis formed during development and doesn’t involve scar tissue. Many men with congenital curvature don’t notice or care about it until they become sexually active.
The second, more common cause is Peyronie’s disease, where scar tissue (called plaque) builds up inside the penis and pulls it in one direction. Peyronie’s is acquired, meaning it develops at some point in adulthood, often after minor injuries during sex that you may not even remember. If your penis was straight and has gradually started curving, Peyronie’s is the likely explanation. Other signs include a hard lump you can feel under the skin, pain during erections, or a loss of length or girth.
This distinction matters because the treatments differ. A urologist can tell the difference through a physical exam and, in some cases, an ultrasound performed during an erection to locate scar tissue and measure the exact degree of curvature.
Active Phase vs. Stable Phase
If you have Peyronie’s disease, your treatment options depend heavily on which phase you’re in. The condition has two stages.
The active phase is the early period when the curvature is still changing. Pain during erections is the hallmark of this stage, and the bend may get worse over weeks or months. During this time, treatments focus on slowing progression rather than correcting the curve. No major surgical or injectable treatments are typically offered while the disease is still evolving because the target is still moving.
The stable phase begins once your curvature has stopped changing for at least three months. This usually happens 12 to 18 months after symptoms first appeared. Once the curve has stabilized, the full range of corrective treatments becomes available.
Traction Devices
Penile traction therapy is one of the least invasive options. It involves wearing a device that applies a gentle, sustained stretch to the penis. Over months of consistent use, traction can gradually reduce curvature and, in some cases, recover lost length.
Clinical trials have found that using a traction device for 30 to 60 minutes daily, five to seven days per week, produces measurable results over about five months. Importantly, studies comparing low-dose schedules (30 minutes a day, five days a week) with higher-dose schedules found no major difference in outcomes, suggesting that even the lighter commitment works. Traction can be used during the active phase to try to limit worsening and during the stable phase as a standalone treatment or alongside other therapies.
Injectable Treatment
For men with stable Peyronie’s disease, an enzyme injection is the only FDA-approved non-surgical treatment that directly breaks down the scar tissue causing the curve. The enzyme works by dissolving collagen in the plaque.
Treatment is delivered in cycles. Each cycle involves two injections into the plaque, spaced one to three days apart, followed by a manual stretching procedure performed by your urologist a few days later. You then wait about six weeks before the next cycle. Up to four cycles can be given per plaque. In clinical trials, patients experienced roughly a 34% reduction in curvature over a year, compared to about a 20% reduction with placebo injections. That difference is meaningful for many men, though it’s not a complete correction in most cases.
Vacuum Devices
Vacuum erection devices, commonly known as penis pumps, are sometimes used as part of a broader treatment plan. These devices draw blood into the penis, creating an erection-like state that stretches the tissue. Study protocols have used them for about 10 minutes twice daily over three months, often combined with a daily low-dose medication to support blood flow. While vacuum devices alone aren’t a primary curvature treatment, they can complement traction therapy or be used after other procedures to maintain flexibility in the tissue.
Surgery for Significant Curves
Surgery is the most effective way to straighten a curved penis, but it’s reserved for men whose disease has been stable for at least three to six months and who have had symptoms for a year or more. There are several surgical approaches, each with tradeoffs.
Plication Procedures
These are the simplest surgeries. Rather than removing the scar tissue, the surgeon shortens the longer side of the penis to match the shorter, scarred side. Think of it like taking a tuck in fabric. Satisfaction rates are high, with studies reporting 83% to 96% of patients satisfied with their results and over 86% achieving complete straightening. The downside is some penile shortening. About 40% to 74% of men report losing length, typically 0.5 to 1.5 cm, though only about 7% say the loss actually affects their sex life. The risk of new erectile problems is low, with about 93% of men reporting no change in erection quality.
Plaque Removal With Grafting
For more severe curves or men who can’t afford to lose length, surgeons can cut into or remove the scar tissue and patch the area with a graft. This approach preserves more length but is a more complex operation. It carries a somewhat higher risk of new erectile difficulties and is generally reserved for curves greater than about 60 to 70 degrees or cases with complex deformities like an hourglass shape.
Penile Implants
For men who have both significant curvature and erectile dysfunction that doesn’t respond to medication, a penile implant can solve both problems at once. The implant straightens the penis mechanically and provides rigidity for sex.
Congenital Curvature Treatments
If you’ve had a curve since birth, injectable enzyme treatments and traction devices won’t help because there’s no scar tissue to target. Surgery is the standard correction. Plication is the most common approach for congenital curvature and tends to produce excellent results because the tissue is otherwise healthy. Many men with congenital curvature don’t pursue treatment unless the bend interferes with sex or causes distress.
What Doesn’t Work
You’ll find supplements, exercises, and devices marketed online for penile straightening that have no clinical support. No oral supplement has been shown to reliably reduce penile curvature. Manual stretching exercises done at home without a medical-grade traction device haven’t been validated in studies either. The American Urological Association’s guidelines on Peyronie’s disease do not recommend any oral medication as a primary treatment for curvature correction. If something sounds too simple or too good to be true, it probably is.
Choosing the Right Approach
The best starting point is getting a proper evaluation from a urologist, ideally one who treats Peyronie’s disease regularly. They’ll measure your curvature, determine whether scar tissue is present, and assess which phase you’re in. From there, the decision tree is fairly straightforward. Mild curves that don’t bother you may not need treatment at all. Moderate curves in the stable phase can often be improved with traction therapy, injections, or both. Severe curves, especially those making intercourse impossible, are best addressed surgically.
Timing matters. Starting traction early, even during the active phase, may help limit how much curvature develops. And waiting for stability before pursuing surgery or injections ensures you’re treating a target that won’t shift after the procedure. Most men see their condition stabilize within 12 to 18 months of first noticing symptoms.