A curved penis is common, and a slight bend during erection is completely normal. But if the curve is significant enough to cause pain, make sex difficult, or bother you, there are proven medical treatments that can reduce it. The right approach depends on what’s causing the curvature, how severe it is, and whether it’s still changing.
Why Your Penis Curves
Most penile curvature falls into one of two categories: something you’ve always had, or something that developed over time.
A mild curve that’s been present since puberty is called congenital curvature. It’s not caused by injury or disease, and a small amount of bend is typical. This type doesn’t usually worsen with age.
Curvature that appears later in life, especially between ages 45 and 70, is most often caused by Peyronie’s disease. In this condition, flat lumps or bands of scar tissue form inside the penis. You can sometimes feel them under the skin as hard, fibrous areas. Because scar tissue doesn’t stretch the way normal tissue does, the penis bends toward the scarred side during an erection. The curve can be upward, downward, or to either side, and it sometimes creates an hourglass-shaped indentation.
Peyronie’s disease typically goes through two phases. The early (active) phase involves inflammation, during which the curve may worsen and erections can be painful. This phase generally lasts 6 to 18 months. Once the curve stabilizes and pain fades, you’re in the stable phase. Knowing which phase you’re in matters because most treatments work best, or are only appropriate, once the curve has stopped changing.
Why Manual Exercises Won’t Help
If you’ve searched online, you’ve probably come across jelqing and other manual stretching techniques marketed as ways to straighten or enlarge the penis. These exercises involve repeatedly pulling or squeezing the shaft, and there is no clinical evidence they reduce curvature. What they can do is cause harm.
Side effects of jelqing include pain, bruising, and skin irritation. More seriously, repeated microtrauma from these exercises can create the very scar tissue that causes Peyronie’s disease. WebMD notes that over time, jelqing can form hard deposits called plaques inside the penis, and in rare cases lead to curvature or erectile dysfunction. If you already have a curve, aggressive manual manipulation risks making it worse.
Oral Medications: Limited Evidence
You may see vitamins, supplements, or oral medications suggested for Peyronie’s disease. The American Urological Association has reviewed the evidence on these and their guidance is clear: vitamin E, tamoxifen, omega-3 fatty acids, and several other oral treatments should not be used because they haven’t been shown to work. Other options like colchicine and pentoxifylline have shown some promise in small studies, but without well-designed trials confirming their benefit, urologists generally don’t recommend them as standalone treatments. No pill has been reliably shown to straighten a curved penis.
Traction Therapy
Penile traction devices are mechanical stretchers worn on the penis for set periods each day. Unlike manual exercises, these apply gentle, consistent force and have clinical data behind them. In one study, using a traction device for 30 to 90 minutes daily over three months improved curvature in 77% of men. The same study found an average increase in penile length of 1.6 cm and significant improvement in erectile function compared to men who didn’t use the device.
Traction therapy is noninvasive and can be used during the active phase of Peyronie’s disease. It’s also sometimes recommended after surgery to maintain length and prevent scar contracture. The main downsides are the time commitment (daily use for months) and the need for consistent compliance to see results. Your urologist can recommend a specific medical-grade device, as over-the-counter products vary widely in quality.
Injectable Treatment
The only FDA-approved injection for Peyronie’s disease is collagenase clostridium histolyticum, sold as Xiaflex. It works by breaking down the collagen in scar tissue, allowing the plaque to soften and the curve to lessen.
The standard protocol involves four treatment cycles spaced six weeks apart. Each cycle includes injections directly into the plaque, followed by gentle modeling (manual stretching performed by the clinician and then by you at home). Clinical trials studying over 800 men found that Xiaflex reduced curvature by 33% to 35% on average, compared to roughly 18% to 22% improvement with a placebo. That difference is meaningful but modest. A man with a 60-degree curve might see it drop to around 40 degrees.
Xiaflex is most appropriate for men in the stable phase with curves between 30 and 90 degrees. Common side effects include bruising, swelling, and pain at the injection site. In rare cases, more serious complications like penile fracture can occur, so the injections must be performed by a trained specialist.
Shockwave Therapy
Extracorporeal shockwave therapy (ESWT) uses focused sound waves directed at the scar tissue. One comparative study found that 50% of men treated with shockwave therapy experienced at least a 30% decrease in curvature, and some evidence suggests it may improve sexual function. Its most consistent benefit, however, is pain relief during the active phase.
The evidence for shockwave therapy remains limited. The UK’s National Institute for Health and Care Excellence has cautioned that results are difficult to interpret because Peyronie’s disease sometimes improves on its own, placebo responses are common, and high-quality controlled trials are lacking. It may be a reasonable option for pain management, but it’s not considered a first-line treatment for straightening.
Surgical Options
Surgery is reserved for men in the stable phase whose curvature is severe enough to prevent satisfactory sex, or who haven’t responded to other treatments. Surgeons generally want to see at least 6 to 12 months of stable curvature before operating. There are two main approaches.
Plication
Plication is the simpler procedure. The surgeon places stitches on the longer side of the penis (opposite the curve) to shorten it and match the scarred side, straightening the shaft. Success rates for achieving a straight penis range from 79% to 100%, and overall patient satisfaction runs between 67% and 100%.
The trade-off is penile shortening. Because the procedure works by evening out the two sides, the penis loses some length, with studies reporting up to 3 cm of loss in some cases. There’s also a 24% chance of reduced sensation at the tip and about a 12% risk of erectile difficulties afterward. Plication works best for men with adequate length and a relatively simple curve without hourglass deformities.
Grafting
Grafting surgery is more complex. The surgeon cuts into or removes the scar tissue and patches the area with graft material, allowing the shorter side to lengthen. This approach can address more complicated deformities and better preserve penile length.
The downside is a higher risk of erectile dysfunction, because the procedure involves more extensive work on the erectile tissue. There’s also a risk of graft contracture over time, where the patch material shrinks and can cause the curve to partially return or lead to further length loss. Grafting is typically recommended for men with severe curves, complex deformities, or cases where shortening from plication would be unacceptable.
What Recovery Looks Like
Recovery from plication surgery is relatively quick for everyday activities. Most men return to work within two or three days. However, the restrictions on physical and sexual activity are strict: no sex, masturbation, or oral sex for six weeks, no cycling for four weeks, and no swimming or baths for two weeks. Surface healing takes about six weeks, but full internal healing can require several months. Grafting surgery follows a similar timeline, though recovery may be somewhat longer depending on the extent of the procedure.
After either surgery, some doctors recommend using a traction device during recovery to help maintain length and support proper healing. Temporary swelling, bruising, and changes in sensation are normal in the first few weeks. The final cosmetic and functional result often isn’t fully apparent until three to six months post-surgery.
Choosing the Right Approach
The best treatment depends on your specific situation. For mild curves in the active phase, traction therapy alone may be enough. For moderate stable curves, a combination of traction and Xiaflex injections is a common starting point. Surgery is the most definitive option but carries the most risk and is best suited for curves that significantly interfere with function.
A urologist who specializes in sexual medicine or reconstructive urology can measure your curvature precisely, identify whether scar tissue is present, determine which phase you’re in, and recommend a treatment plan matched to your anatomy and goals. If your curve has been stable and isn’t causing problems during sex, treatment may not be necessary at all.