Radical prostatectomy removes the prostate and seminal vesicles and requires the surgeon to work in close proximity to the neurovascular bundles — the paired nerve structures that run along either side of the prostate and are responsible for erectile function. Even with nerve-sparing technique, these nerves are stretched, compressed, and temporarily disrupted during surgery.

As a result, erectile dysfunction (ED) is expected in the period immediately following prostatectomy — even in men who had normal erectile function before surgery. This is not a permanent outcome for most men, but recovery takes time and, for many, active rehabilitation.

Several other changes also occur after prostatectomy that are important to understand:

• Dry orgasm (anejaculation): Because the prostate and seminal vesicles are removed, there is no ejaculate. Orgasm is still possible, but it is dry. This is permanent and expected.
• Penile length changes: Some men notice a reduction in penile length after prostatectomy. This is related to changes in tissue oxygenation and smooth muscle health during the recovery period. Penile rehabilitation is in part aimed at preserving tissue health during this window.
• Climacturia: Some men experience leakage of urine at orgasm. This is common in the early recovery period and often improves over time.
• Changes in orgasm sensation: Some men describe changes in the quality or intensity of orgasm after prostatectomy. These experiences vary widely.

When cancer location and oncologic safety allow, surgeons may attempt to preserve one or both neurovascular bundles — a technique called nerve-sparing prostatectomy. Whether nerve sparing is possible depends on tumor location, cancer characteristics, anatomy, and the surgeon's intraoperative assessment.

Nerve sparing significantly affects the likelihood and timeline of erectile recovery. Bilateral nerve sparing (both sides preserved) is associated with better outcomes than unilateral (one side) or non-nerve-sparing surgery. However, even with bilateral nerve sparing, recovery is not immediate — the nerves require months to recover from the trauma of surgery.

It is important to understand that nerve sparing refers to the preservation of the nerve structures, not a guarantee of erectile function. Many factors influence recovery, including age, baseline erectile function before surgery, overall vascular health, and whether a penile rehabilitation program is followed.

Penile rehabilitation refers to a structured approach to supporting erectile tissue health during the nerve recovery period after prostatectomy. The underlying rationale is that the smooth muscle tissue of the penis requires regular oxygenation to remain healthy. When erections are absent — as they often are in the early post-surgical period — this oxygenation is reduced, and tissue changes can occur that may affect long-term erectile function.

Penile rehabilitation is aimed at maintaining tissue health during the window when natural erections are not yet occurring, with the goal of supporting better outcomes once nerve recovery progresses. It is not a treatment for the nerve injury itself — nerve recovery takes its own time — but rather a way to preserve the tissue that will respond to those nerves as they recover.

Rehabilitation programs vary and are individualized. They may include one or more of the following approaches, depending on the patient's health, surgical outcome, and goals:

• Oral phosphodiesterase-5 (PDE5) inhibitors (such as sildenafil or tadalafil)
• Vacuum erection devices (VEDs)
• Intraurethral or intracavernosal therapies
• Combination approaches

The appropriate approach — and when to begin — should be discussed with your urologist. There is no single protocol that is right for every man, and the evidence base for specific rehabilitation regimens continues to evolve.

PDE5 inhibitors are the most commonly used medications for erectile dysfunction and are frequently incorporated into penile rehabilitation programs after prostatectomy. They work by enhancing blood flow to the penis in response to sexual stimulation.

After nerve-sparing prostatectomy, PDE5 inhibitors may be used in two ways:

• On-demand use: Taken before anticipated sexual activity.
• Daily low-dose use: Taken regularly at a lower dose as part of some penile rehabilitation programs, with the goal of supporting erectile tissue health during nerve recovery.

These medications require intact nerve function to work — they do not bypass nerve damage. In the early post-surgical period, when nerve recovery is incomplete, they may have limited effect. Their role in rehabilitation is primarily tissue preservation during the recovery window, with the expectation that their effectiveness will increase as nerve recovery progresses.

PDE5 inhibitors are prescription medications. Whether they are appropriate for you, which medication, and at what dose should be determined by your urologist, taking into account your cardiovascular health and other medications.

A vacuum erection device (VED) is a non-invasive device that creates negative pressure around the penis, drawing blood into the erectile tissue. It is used both as a rehabilitation tool and as a way to achieve erections sufficient for sexual activity.

As a rehabilitation tool, VEDs are used to promote penile blood flow and tissue oxygenation during the period when spontaneous erections are absent or infrequent. Some urologists recommend VED use beginning in the early post-surgical period as part of a rehabilitation program.

VEDs are available by prescription and over the counter. If your urologist recommends a VED, ask for guidance on appropriate devices and how to use one correctly. Technique matters, and improper use can cause discomfort or injury.

Erectile recovery after prostatectomy is a gradual process that unfolds over months to years — not weeks. Understanding the general timeline helps set realistic expectations and reduces the discouragement that many men feel when early recovery is slow.

These timelines are general. Individual recovery depends on many factors, and there is significant variation among men. Your urologist is the best source of guidance on what to expect given your specific surgical outcome and health history.

For men who do not achieve satisfactory erectile function with oral medications and other conservative approaches, additional options exist. These are typically considered after a reasonable period of nerve recovery — often 12 to 24 months — and after conservative options have been tried.

• Intracavernosal injections (ICI): Medications injected directly into the erectile tissue that produce an erection independent of nerve function. Effective even when nerve recovery is incomplete. Requires instruction and comfort with self-injection.
• Intraurethral suppositories (MUSE): A medicated pellet inserted into the urethra. Less effective than ICI for most men but non-invasive.
• Penile prosthesis (implant): A surgically implanted device that allows men to achieve erections on demand. Considered when other options have not provided satisfactory results. High satisfaction rates are reported among men who choose this option after appropriate counseling.

These options should be discussed with a urologist who specializes in sexual medicine or male reproductive health. The right choice depends on your goals, health, and personal preferences.

Sexual recovery after prostatectomy is not only a physical process. For many men and their partners, it involves navigating changes in identity, relationship dynamics, and what intimacy means during and after recovery.

Penetrative intercourse is one form of sexual intimacy, but it is not the only one. Many couples find that the recovery period opens conversations about intimacy that they had not previously had — and that broadening their definition of sexual connection supports both partners through the process.

Partners are often deeply affected by these changes as well. Open communication, patience, and — when helpful — support from a counselor or sex therapist who works with cancer survivors can make a meaningful difference. The emotional dimensions of sexual recovery are addressed further in the Emotional & Relationship Wellbeing section of this guide.