Penile curvature that bothers you or interferes with sex is treatable, but the right approach depends on what’s causing the curve, how severe it is, and whether it’s still changing. A slight curve is completely normal and doesn’t require any treatment. Curves beyond 30 degrees, especially those that make penetration difficult or painful, are where medical options come into play.
Why Your Penis Curves in the First Place
There are two main reasons a penis curves. The first is congenital curvature, meaning you’ve had it since puberty. This is relatively common in younger men and simply results from uneven development of the tissue inside the penis. There’s no scar tissue or plaque involved, and it doesn’t get worse over time.
The second, and more common reason in men over 40, is Peyronie’s disease. This happens when flat bands of scar tissue (called plaque) form inside the penis, pulling it in one direction during an erection. You can sometimes feel these as hard, flat lumps under the skin. Peyronie’s most often appears between ages 45 and 70, though it can happen earlier. Along with the curve itself, Peyronie’s can cause pain during erections, a narrowing or hourglass shape in the shaft, shortening of the penis, and difficulty getting or maintaining erections.
The distinction matters because Peyronie’s disease has two phases. During the active phase (roughly the first 12 to 18 months), the curve is still changing, and pain is common. Once the plaque stabilizes and the curve stops progressing, you’re in the stable phase. Most treatments that physically correct curvature are only appropriate once the disease has stabilized, typically after at least 12 months of symptoms and 3 to 6 months of no change in the curve.
When Curvature Needs Treatment
Mild curvature that doesn’t affect your ability to have sex doesn’t need any intervention. There’s no medical reason to pursue treatment for cosmetic concerns alone if everything functions fine. The threshold where urologists start recommending active treatment is generally around 30 degrees of curvature, particularly when it causes difficulty with penetration, pain, or significant distress. If your curve is less than that and sex is comfortable for you and your partner, monitoring it over time is a reasonable approach.
Injectable Treatment
For men with stable Peyronie’s disease and a curve between 30 and 90 degrees, injections of an enzyme that breaks down the scar tissue are the primary non-surgical option. The enzyme is injected directly into the plaque, then the penis is manually bent (called “modeling”) to help break up the scar tissue further. You also perform gentle modeling exercises at home between visits.
A standard course involves up to 8 injections spread over several months. In clinical data, men who completed the full course or stopped early because they were satisfied saw a median improvement of about 27.5 degrees, roughly a 41% reduction in curvature. A newer injection technique has shown even better results, with a median improvement of 34 degrees (58% reduction) in men who completed treatment. This won’t necessarily make the penis perfectly straight, but for many men it’s enough to restore comfortable sexual function.
Traction and Vacuum Devices
Penile traction therapy uses a device that applies a gentle, sustained stretch to the penis over weeks or months. The goal is to remodel the scar tissue gradually. Protocols vary: some devices are designed to be worn for up to 9 hours a day over at least 3 months, while newer devices use shorter sessions of 30 minutes once or twice daily for 3 months or longer. Traction is sometimes used on its own for modest curves, or as a complement to injections or surgery to help preserve length.
Vacuum erection devices, the same type used for erectile dysfunction, can also play a role. The protocol for Peyronie’s involves using the device twice daily for about 10 minutes per session without a constriction ring. Sessions longer than 10 minutes don’t appear to add benefit. Vacuum therapy is often used before surgery to prepare the tissue, or afterward during recovery, rather than as a standalone cure for significant curvature.
Surgical Options
Surgery is the most effective way to straighten the penis, but it’s reserved for men with stable disease who haven’t gotten enough improvement from other treatments. There are three main approaches, and the choice depends on the severity of the curve and whether erectile function is intact.
Plication
This is the simplest surgery. The surgeon shortens the longer side of the penis (the side opposite the curve) by placing permanent stitches that pull it straight. It’s reliable and carries a low risk of erectile problems afterward, but it does result in some penile shortening, proportional to the degree of curve being corrected. It works best for curves under about 60 degrees in men who have good erections.
Plaque Incision and Grafting
For more severe curves, the surgeon cuts into or removes the scar tissue itself, then patches the gap with a graft. This preserves more length than plication but is a more complex procedure with a slightly higher risk of changes in sensation or erectile function. In studies combining both techniques for severe cases, men achieved good to excellent correction that held up at follow-up of over a year, though temporary numbness or reduced rigidity can occur early in recovery.
Penile Implants
When Peyronie’s disease coexists with erectile dysfunction that doesn’t respond to medication, a penile implant can solve both problems at once. During the procedure, the surgeon places an inflatable device inside the penis and then forcibly bends the erect penis in the opposite direction of the curve (a technique called modeling) to break through the scar tissue. This is done in 90-second intervals until the curve is corrected. In published data, this approach reduced curvature from an average of about 48 degrees down to roughly 11 degrees, with 87.5% of men ending up with less than 15 degrees of residual curve.
What Doesn’t Work
Oral medications do not straighten a curved penis. Over-the-counter supplements, vitamins, and pills marketed for Peyronie’s disease have no evidence of reducing curvature. The American Urological Association specifically notes that oral therapies are not appropriate for stable disease. During the active phase, anti-inflammatory pain relievers can help manage discomfort, but they won’t change the curve itself.
Shockwave therapy, which uses focused sound waves directed at the plaque, has shown some ability to reduce pain and modestly shrink plaque size. However, the reduction in actual curvature has not been statistically significant in studies. It may help with pain in the active phase, but it’s not a reliable method for straightening.
What to Do Right Now
If your curve is new or getting worse, you’re likely in the active phase of Peyronie’s disease. This is not the time for surgery or most corrective treatments. Managing pain and monitoring the progression is the priority. Keep track of the degree and direction of the curve over several months so you have a clear picture of whether it’s stabilizing.
If your curve has been stable for at least 3 to 6 months and it’s affecting your sex life, that’s when the full range of treatments opens up. A urologist who specializes in sexual medicine can measure your curvature precisely, assess your erectile function, and help you weigh whether injections, traction, surgery, or a combination makes the most sense for your specific situation. The degree of curve, the presence or absence of erectile dysfunction, and how much the condition affects your quality of life are the three factors that drive the decision.