Erectile Function After Radical Prostatectomy: Top 10 Frequently Asked Questions

Erectile dysfunction (ED) is common after radical prostatectomy, a surgery used to treat prostate cancer. For many men, erections are weak or absent in the months following surgery. While this can be frustrating, it’s important to know that recovery is possible—and effective treatments are available.

At Mayo Clinic, we support men through every stage of recovery, including sexual health, which is an essential part of overall well-being after cancer treatment.

Is erectile dysfunction common after prostatectomy?

Yes. Most men experience erectile dysfunction after prostate cancer surgery.

The nerves and blood vessels responsible for erections are located very close to the prostate. Even with the most advanced surgical techniques, these structures can be affected. As a result, many men have little or no natural erections during the first year after surgery.

Why does erectile dysfunction happen after prostate cancer surgery?

ED after prostatectomy can result from several factors:

• Temporary “shock” to the erection nerves
• Stretching or injury to the nerves controlling erections
• Reduced blood flow to penile tissue
• Damage to small blood vessels

These changes can occur even when nerve-sparing surgery is performed.

How long does it take to recover erections after prostatectomy?

Recovery takes time and varies from person to person:

• Most improvement occurs within the first 12 months
• Additional recovery may continue up to 24 months
• After 2 years, further changes are usually limited

Patience and early treatment can make a meaningful difference.

Will I return to my baseline erectile function?

Recovery outcomes vary:

• About 20–25% of men return to their baseline erectile function after surgery
• Many men experience partial improvement with treatment

For comparison, erectile function recovery after radiation therapy occurs in about 40–45% of men.

Does nerve-sparing surgery improve recovery?

Yes. Nerve-sparing techniques increase the likelihood of erectile recovery, but results depend on several factors:

• Whether one or both nerve bundles are preserved
• Erectile function before surgery
• Age and overall health
• Surgical expertise

At Mayo Clinic, surgeons use advanced robotic techniques to optimize outcomes whenever possible.

Can erectile recovery be predicted?

Doctors can estimate recovery potential using:

• Age
• Body weight (BMI)
• Baseline erectile function
• Nerve-sparing status
• Surgical factors

For example:

• Younger men with normal erections before surgery and bilateral nerve-sparing procedures tend to have higher recovery rates
• Older men or those with pre-existing ED may need more support after surgery

When should treatment for ED begin?

Early treatment—called penile rehabilitation—is strongly recommended.

At Mayo Clinic, rehabilitation often begins:

• Shortly after catheter removal

Early intervention helps:

• Preserve healthy penile tissue
• Improve long-term erectile function
• Reduce the risk of permanent changes

What treatments are available after prostate cancer surgery?

A stepwise approach is typically used:

1. Oral medications (such as sildenafil or tadalafil)
2. Vacuum erection devices
3. Penile injections
4. Penile implants (prostheses)

Many men benefit from combining therapies rather than relying on medication alone.

Does prostate surgery affect orgasm or penile size?

Some changes are common:

• Penile shortening may occur, especially early after surgery
• Some length may return over time with rehabilitation
• Orgasm is still possible, but there is no ejaculation
• Sensation may feel different initially but often improves

When should I seek help from a specialist?

At any stage—it’s never too early or too late.

Support from a urologist or sexual medicine specialist can help:

• Before surgery (to set expectations)
• Early after surgery (to begin rehabilitation)
• Later, if ED persists or affects relationships

Mayo Clinic offers coordinated care with urology, sexual medicine, and counseling specialists to support both physical and emotional recovery.

Take the Next Step

Erectile dysfunction after prostate cancer surgery is common, expected, and treatable. With early care and the right support, many men regain satisfying sexual function.

If you’re experiencing ED after prostatectomy—or preparing for surgery—Mayo Clinic can help you understand your options and create a personalized recovery plan.

Request an appointment today to take the next step in your recovery.