Can Surgery Cause Erectile Dysfunction? Prostate Surgery and ED Explained

Surgery — particularly prostate surgery — is one of the most common causes of acquired erectile dysfunction in the UK. While this can be deeply distressing, post-surgical ED is often partially or fully reversible, and effective treatment options are available — including penile rehabilitation programmes that can be started shortly after surgery. This guide explains why surgery causes ED, what the recovery timeline typically looks like, and the full range of treatment options.

Why Does Surgery Cause Erectile Dysfunction?

Radical Prostatectomy

The most common surgery-related cause of ED is radical prostatectomy — surgical removal of the prostate gland, typically performed for prostate cancer. Two small nerve bundles called the cavernous nerves run along each side of the prostate. These nerves carry the signals from the brain that trigger blood flow into the penis and initiate an erection.

Even in cases where cancer has not invaded these nerves, their proximity to the prostate means they are at significant risk of stretching, bruising, or inadvertent damage during surgical dissection. This nerve trauma disrupts the signals needed for an erection, causing both temporary and — in some cases — longer-lasting ED.

Other Surgeries That Can Cause ED

• Bladder surgery — particularly cystectomy (bladder removal)
• Colorectal surgery — particularly anterior resection for rectal cancer
• Pelvic fracture repair — blunt trauma or surgical repair can damage the pudendal artery or cavernous nerves
• TURP (transurethral resection of the prostate) — for benign prostatic hyperplasia (BPH); lower risk of ED than radical prostatectomy but not zero
• Aortic aneurysm repair — can disrupt blood supply to the pelvis
• Spinal surgery — operations affecting the lumbar spine can damage nerve pathways to the penis

Nerve-Sparing Prostatectomy

Where clinically appropriate, surgeons may perform a nerve-sparing prostatectomy, which attempts to carefully dissect and preserve the cavernous nerves. When technically feasible and oncologically appropriate, this significantly improves the prognosis for erectile recovery. However:

• Nerve-sparing is not always possible — if cancer is close to or has infiltrated the nerve bundles, removal may be necessary
• Even with nerve-sparing surgery, nerve bruising and stretching during dissection causes temporary loss of erectile function in most men
• Full recovery, where it occurs, typically takes 12–24 months

Men having a prostatectomy should discuss nerve-sparing options with their surgeon before the procedure.

Recovery Timeline After Prostate Surgery

Recovery is highly individual and depends on age at surgery, pre-operative erectile function, whether nerve-sparing was performed, surgical approach (open, laparoscopic, robotic), and overall cardiovascular health. Younger men with good pre-surgical erectile function who undergo bilateral nerve-sparing surgery have the best prognosis.

Treatment Options for Post-Surgical ED

Penile Rehabilitation

Early, proactive treatment — starting as soon as the catheter is removed after surgery — is thought to preserve erectile tissue health and support nerve recovery. This is called penile rehabilitation. The principle is that regular blood flow to the penis during the recovery period helps maintain oxygenation and elasticity of erectile tissue. Rehabilitation typically combines regular PDE5 inhibitor use (low-dose daily tadalafil or on-demand sildenafil), vacuum erection device (VED) use, and pelvic floor exercises.

Oral PDE5 Inhibitors

Sildenafil, tadalafil, and vardenafil all have evidence supporting their use in post-prostatectomy ED. Low-dose daily tadalafil (5mg) is commonly recommended for penile rehabilitation due to its continuous action. Note: PDE5 inhibitors work most effectively when at least some cavernous nerve function remains. After non-nerve-sparing surgery, response may be limited, and other approaches may be needed. For a comparison of medications, see: Viagra vs Cialis vs Levitra vs Stendra.

Pelvic Floor Exercises

Pelvic floor exercises (Kegel exercises) have good evidence for improving erectile function following prostate surgery and should ideally be started before surgery and continued post-operatively. For a step-by-step guide, see: Lifestyle Changes for Erectile Dysfunction.

Vacuum Erection Devices

A vacuum erection device (VED) draws blood into the penis using negative pressure, creating an erection maintained by a constriction ring. VEDs can be used both as a rehabilitation tool and as an ongoing treatment option — particularly for men with significant nerve damage where oral medications have limited effect.

Penile Injection Therapy

Alprostadil (prostaglandin E1), injected directly into the corpus cavernosum, causes vasodilation and an erection independent of nerve function. Success rates of approximately 85%. This makes injection therapy particularly valuable for men with nerve-damaging surgery. It requires training to use correctly and is typically initiated under urology supervision.

Surgical Penile Implants

If both cavernous nerves were removed or damaged beyond recovery, and other treatments have been unsuccessful, a penile prosthesis (implant) provides a permanent solution. Inflatable implants are the most popular and natural-feeling; semi-rigid implants are simpler. Satisfaction rates in appropriately selected men are 90–95%. This is typically considered at 18–24 months post-surgery if other approaches have failed.

Accessing Treatment Without a GP Appointment

You do not need to travel to a GP to access prescription ED medication after prostate or pelvic surgery. Access Doctor’s GPhC-registered pharmacist independent prescribers can assess your post-surgical situation via a secure online consultation and prescribe appropriate treatment — including sildenafil and tadalafil — discreetly and quickly.

For a full overview of causes beyond surgery, see: What Causes Erectile Dysfunction?