A curved penis can be straightened through several approaches depending on the cause, severity, and whether it’s affecting your sex life. Mild curvature is common and often needs no treatment at all. When curvature is significant, typically beyond 30 degrees, options range from injectable medications and traction devices to surgical correction, with success rates above 85% for most procedures.
The first step is understanding what’s causing the curve, because that determines which treatments actually work.
What’s Causing the Curve
Penile curvature falls into two categories. Congenital curvature is something you’ve had since birth, even if you didn’t notice it until puberty when erections became more frequent. It doesn’t involve scar tissue, doesn’t cause pain, and won’t get worse over time. Peyronie’s disease, on the other hand, develops later in life when scar tissue (called plaque) forms inside the penis, pulling it in one direction during erection. Peyronie’s can cause pain, may worsen over months, and sometimes creates an hourglass shape or a hinge point where the penis buckles.
Peyronie’s disease has two phases. The acute phase lasts roughly 6 to 18 months, during which the plaque is still forming, the curvature may be changing, and erections can be painful. The stable phase begins once the curvature stops progressing and pain subsides. Most doctors won’t recommend surgery until you’ve been in the stable phase for at least three months, because operating on a moving target risks under- or over-correction.
Curvature severity is graded on a simple scale: 30 degrees or less is mild, 30 to 60 degrees is moderate, and anything above 60 degrees is severe. Interestingly, the degree of curvature alone doesn’t predict erectile dysfunction. Some men with severe curves maintain full erections, while others with mild curves struggle. What matters most is whether the curve interferes with penetration or causes discomfort for you or your partner.
Injections That Break Down Scar Tissue
For Peyronie’s disease specifically, the only FDA-approved injection is collagenase clostridium histolyticum (sold as Xiaflex). It works by breaking down the collagen in the plaque that’s causing the bend. A full treatment course involves up to four cycles, with two injections per cycle plus a manual modeling procedure performed by a urologist. That’s a maximum of eight injections and four modeling sessions over several months.
In clinical trials, men receiving these injections saw their curvature decrease by about 34 to 35% from baseline over 52 weeks. So if you started with a 60-degree curve, you might end up around 40 degrees. That’s often enough to restore comfortable sexual function, though it won’t produce a perfectly straight result for most men. The treatment works best for moderate curvature and is typically offered to men with curves between 30 and 90 degrees.
Traction Devices and Vacuum Pumps
Penile traction therapy uses a mechanical device that applies gentle, sustained stretch to the penis over weeks or months. The protocol in clinical studies calls for wearing the device 2 to 8 hours per day for about 6 months. That’s a serious time commitment, and the device needs to be worn consistently to see results. Traction is sometimes used on its own for mild curvature or combined with other treatments.
Vacuum erection devices are another non-surgical option. The typical protocol involves using the pump to achieve an erection, holding it for about two minutes, then gently manipulating the penis for five minutes, followed by a series of stretches in the flaccid state. In one clinical trial, patients using a vacuum device saw an average curvature reduction of about 7 degrees over six months, with half reporting subjective improvement in their condition. These aren’t dramatic numbers, but for men with mild curvature or those looking to stabilize the disease, they offer a low-risk starting point.
Supplements and Pills: What Doesn’t Work
Vitamin E supplements are widely promoted online for Peyronie’s disease, but the American Urological Association explicitly recommends against using them. The evidence shows they don’t meaningfully reduce curvature. Other oral supplements like potassium aminobenzoate (Potaba) and pentoxifylline have limited, inconclusive data behind them, and the AUA does not recommend them either. No pill or supplement has been shown to reliably straighten a curved penis.
Shockwave Therapy
Extracorporeal shockwave therapy directs focused sound waves at the plaque. It has shown some ability to reduce pain during the acute phase of Peyronie’s disease, but its effect on the actual curvature is less convincing. One study found that 50% of patients experienced a 30% decrease in curvature, but pain tends to resolve on its own as Peyronie’s enters its stable phase, making it hard to separate the therapy’s effect from the natural course of the disease. The measurement methods used in many studies have also been questioned for lacking objectivity. If your primary complaint is pain rather than curvature, shockwave therapy may be worth discussing, but it’s not a reliable fix for the bend itself.
Surgery for Moderate Curvature
When the curve is stable, interferes with sex, and non-surgical treatments haven’t been enough, surgery becomes the most effective option. For curves under 60 degrees, the standard approach is a plication procedure. The surgeon places permanent sutures on the longer side of the penis to match it to the shorter side, effectively straightening the shaft. Several variations exist, including the Nesbit procedure and the tunica albuginea plication (TAP).
Candidates for plication generally need adequate erectile function, a curvature under 60 degrees (though some surgeons go higher), and a pre-operative erect length of at least 13 centimeters. The main trade-off is some degree of shortening, since the procedure works by bringing the longer side down to meet the shorter side. Surgeons aim to keep length loss under 20%. For men who already feel their penis is short, this trade-off can be a dealbreaker, and a different approach may be recommended.
Surgery for Severe Curvature
When curvature exceeds 60 degrees, or when there’s an hourglass deformity or significant shortening, grafting surgery becomes the preferred technique. Instead of shortening the long side, the surgeon makes an incision in the plaque on the short side and patches the gap with graft tissue. This preserves more length because it’s extending the concave side rather than reducing the convex side.
Grafting is a more complex operation with a longer recovery, and it requires good erectile function beforehand, since the procedure carries a higher risk of affecting rigidity compared to plication. Curves greater than 90 degrees, heavily calcified plaque, or significant erectile dysfunction that doesn’t respond to medication are all situations where grafting alone may not be the best answer.
Implants for Curvature With Erectile Dysfunction
For men dealing with both a significant curve and erectile dysfunction that doesn’t improve with medication, an inflatable penile prosthesis can solve both problems at once. The surgeon places the implant and then manually models (bends) the erect penis over it to break the plaque and straighten the shaft.
In a study of 138 men with severe Peyronie’s disease, this technique produced a straight, rigid erection in 86% of cases. Another 8% needed additional plaque incisions during the same procedure to achieve satisfactory straightening. At an average follow-up of nearly three years, 90% of patients were actively using their prostheses, and none reported shortening or loss of sensation in the head of the penis. For men whose erectile function is already compromised, this approach often delivers the highest satisfaction because it addresses both issues simultaneously.
Congenital Curvature: A Simpler Picture
If you’ve had a curve your whole life, you’re dealing with a structural issue rather than scar tissue. There’s no plaque to dissolve, so injections and traction devices don’t apply. The curve won’t worsen over time, so the only reason to treat it is if it’s causing difficulty with sex or significant distress. When treatment is warranted, surgery (typically a plication procedure) is the standard approach and tends to be more straightforward than Peyronie’s surgery because there’s no diseased tissue complicating the repair.