The Cleanest Cut: 50 Years of Making Penile Implant Surgery Safer

Last updated: July 18, 2026

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For a man with severe erectile dysfunction that no pill or injection can fix, a penile implant can be life-changing — restoring intimacy, confidence, and a sense of wholeness. But for decades, this remarkable surgery carried one silent, microscopic enemy: infection. The story of how doctors have battled and largely conquered that threat over fifty years is one of the most inspiring tales of quiet, relentless progress in modern medicine.

In May 2026, while shadowing Professor Mohit Khera — a global leader in men’s health and prosthetic surgery — at the American Urological Association (AUA) 2026 meeting in Washington, DC, I attended a lecture that completely changed how I think about surgical innovation. It traced the journey from the high-infection days of the 1970s to today’s ultra-clean, DNA-guided operating rooms. Here is that remarkable story, told for everyone.

First, What Is a Penile Implant?

An inflatable penile prosthesis (IPP) is the gold-standard solution for men with severe erectile dysfunction caused by conditions like diabetes, prostate cancer surgery, or cardiovascular disease — cases where pills and injections no longer work. It’s an elegant device hidden completely inside the body, made up of two cylinders placed in the erection chambers, a small pump tucked into the scrotum, and a fluid reservoir in the lower abdomen.

When a man wants an erection, he simply presses the pump, which moves fluid into the cylinders to create a firm, natural erection. A release valve returns the fluid afterward. Because everything is internal, it feels natural and is invisible to the outside world.

But there’s a catch. Because it’s an implanted device, it has one unique vulnerability: bacteria. If germs settle on the device during surgery, they can form a protective shield called a biofilm. Once a biofilm forms, ordinary antibiotics can’t penetrate it — and the only fix is another surgery to remove the entire device. Preventing this has been the holy grail of implant surgery for fifty years.

Era 1: The “Wild West” (Before 2001)

The early decades, from the 1970s through the 1990s, featured brilliant engineering but frustratingly high infection rates — especially in vulnerable patients like those with diabetes, and even higher when a previous implant needed replacing.

Back then, surgeons cleaned the skin with a traditional iodine solution. It killed surface germs but had no lasting power. When an infection did strike, options were grim. In the 1990s, a legendary urologist, Dr. Brantley Mulcahy, introduced a clever “salvage rescue” — instead of simply removing the infected device (which caused the tissue to scar and the penis to shorten), he washed the cavity with strong antiseptics and immediately placed a fresh device. It saved many men from disfigurement, but the chemicals were so harsh they also damaged healthy tissue. Surgeons urgently needed a way to kill germs without harming the patient.

Era 2: The Coated Device Revolution (2001–2010)

The new millennium brought two game-changing upgrades.

First, surgeons switched from iodine to an alcohol-based chlorhexidine skin prep. High-quality studies proved it was far better at preventing infections, because it binds to the skin and keeps killing bacteria for hours after the first incision.

Second, manufacturers turned the implant itself into a weapon. One company coated its devices with antibiotics that slowly release into the surrounding tissue, killing stray bacteria. A rival introduced a special water-loving coating that lets surgeons dip the implant in an antibiotic solution of their choice right before insertion. The impact was striking: doctors discovered that a surprising number of older, uncoated implants had silent, symptom-free bacteria quietly living on them — and the new coated devices dramatically cut the rate of bacteria found during follow-up surgeries.

Era 3: The “No Touch” Technique (2010–2019)

With cleaner skin preps and smarter devices, the next frontier was the operation itself. Even after the best skin cleaning, deep skin pores still harbor microscopic bacteria. If a surgeon’s glove or an instrument touched the skin and then the implant, those germs could hitch a ride straight into the body.

The solution was the ingenious “No Touch” technique. Before the implant is ever opened, the entire surgical area is covered with a sterile plastic drape (sometimes called a “mummy wrap”). The surgeon works through a small opening, ensuring the implant never touches the patient’s bare skin at any point. By physically isolating the device from the skin, the amount of bacteria detected during later surgeries dropped even further.

Era 4: The Modern Frontier — Smart Antiseptics and DNA Science (2020+)

This brings us to today’s exciting era of highly tailored, molecularly guided surgery.

Antiseptics Return — But Smarter

As bacteria worldwide grow more resistant to antibiotics, surgeons have circled back to antiseptics — but with modern precision. Instead of the harsh, tissue-damaging chemicals of the 1990s, they now use gentle, highly diluted antiseptic solutions. A leading example is a very low-concentration chlorhexidine rinse that safely wipes out virtually all bacteria and fungi within minutes — without harming human tissue. In hot, humid climates where fungal infections are more common, surgeons also routinely add antifungal medication right before the operation.

Reading the Bacteria’s DNA

Perhaps the most mind-blowing advance is the shift from old-fashioned lab cultures to Next-Generation Sequencing (NGS). For over a century, identifying an infection meant swabbing the area, smearing it on a lab plate, and waiting days to see what grew — a method that misses many sneaky bacteria that won’t grow in a lab.

NGS skips the lab plate entirely. It reads the raw DNA from the surgical site and matches it against a huge genetic database, identifying exactly which bacteria are present within hours — even from tiny fragments. Researchers have discovered that different problems harbor different germ “fingerprints”: infected implants, eroded implants, and pure mechanical failures each tend to involve distinct organisms. Armed with this genetic blueprint, surgeons no longer have to guess which antibiotic to use — they can pick the exact right weapon for the exact bacteria they’re fighting.

Why This Story Matters

Walking out of that lecture hall, I felt a deep sense of gratitude. The true beauty of medicine isn’t only in discovering the “next big thing.” It’s in the willingness to look honestly at what we already do, find the flaws, and work relentlessly across decades to fix them. A complication that once caused stress and heartbreak for thousands of men has been systematically dismantled — through better skin prep, clever device design, disciplined surgical technique, and cutting-edge genetic science.

For the millions of men who reclaim their intimacy, confidence, and relationships through a penile implant, this fifty-year war against bacteria isn’t just an academic timeline — it’s the reason they can look forward to a safer, healthier, and fully restored future.

Fifty years of refinement is precisely why the procedure is now offered with confidence. Read what the operation involves today on the penile prosthesis surgery page, including candidacy, recovery, and device lifespan.

If you are struggling with severe erectile dysfunction that hasn’t responded to other treatments, a penile implant may be an option worth discussing. Dr. Soarawee Weerasopone offers specialist consultations in men’s health and prosthetic urology at Bangkok Hospital Headquarters. Book a Consultation.

Frequently Asked Questions

What is an inflatable penile prosthesis (IPP)?

An inflatable penile prosthesis is a surgically implanted device that helps men with severe erectile dysfunction achieve an erection when pills and injections no longer work. It consists of two cylinders in the penis, a small pump in the scrotum, and a fluid reservoir in the lower abdomen. Pressing the pump moves fluid into the cylinders to create a firm, natural erection. Because it is entirely internal, it feels natural and is invisible from the outside. It is considered the gold-standard, definitive treatment for severe ED.

How common is infection after penile implant surgery today?

Infection rates have dropped dramatically over the past fifty years. Thanks to modern advances — alcohol-based chlorhexidine skin preparation, antibiotic-coated devices, the “No Touch” surgical technique, gentle antiseptic rinses, and DNA-based bacterial identification — infection is now an uncommon complication in experienced hands. Today’s protocols make penile implant surgery safer than ever before.

What is a biofilm, and why does it matter for implants?

A biofilm is a protective shield that bacteria can form on the surface of an implanted device. Once a biofilm develops, ordinary intravenous antibiotics cannot penetrate it, which means the infection usually cannot be cured with medication alone — the device typically must be removed surgically. This is why preventing bacteria from ever reaching the implant during surgery is so important, and why modern infection-control techniques focus heavily on this goal.

What is the “No Touch” technique in penile implant surgery?

The “No Touch” technique is a surgical method designed to prevent the implant from ever contacting the patient’s bare skin, where bacteria live deep within the pores. The surgical area is covered with a sterile plastic drape, and the surgeon works through a small opening so the device is completely isolated from the skin surface. This simple but powerful innovation significantly reduced the bacteria detected during surgery and improved implant safety.

Who is a good candidate for a penile implant?

A penile implant is generally considered for men with severe erectile dysfunction that has not responded to first-line treatments such as oral medications (PDE5 inhibitors) or penile injections. Common underlying causes include diabetes, complications after prostate cancer surgery, and cardiovascular disease. The decision is made together with a urologist after a thorough evaluation of the patient’s health, expectations, and treatment history.

Disclaimer: This content is written and reviewed by Dr. Soarawee Weerasopone, a board-certified urologist at Bangkok Hospital Headquarters. It is intended for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any medical treatment.