Sexual Side Effects of Enlarged Prostate (BPH) Treatments: What to Know Before You Decide

As with any condition, treatment conversations about benign prostatic hyperplasia (BPH) treatment are discussed in terms of immediate symptom relief. The goal of all BPH treatments is to ultimately improve urinary problems. So, while questions about a weak urine stream, frequent urination, difficulty emptying the bladder, and waking at night to urinate are naturally the first ones on a patient’s mind, another topic is equally important: how might treatment affect sexual function? Some treatments can change ejaculation, while others may affect erections or libido. These effects vary by treatment and from person to person.

This article reviews the sexual effects associated with commonly used BPH treatments, including medications, surgical procedures, and prostatic artery embolization. Understanding these differences will help you make informed decisions about managing symptoms while considering sexual health and quality of life.

Why Should Sexual Function Be Discussed?

About half of men with lower urinary tract symptoms also report some form of ejaculatory difficulty. Sexual health is an important part of overall well-being, but you may feel uncomfortable discussing it during a medical consultation. The term itself and the causes of “sexual dysfunction” are quite broad; you might be unsure whether a change in sexual function is related to BPH itself, another health condition, or a treatment.

It is helpful to distinguish between three aspects of sexual function:

• Ejaculation: The release of semen during orgasm. Some treatments can reduce the amount of semen released or cause little or no visible ejaculate.
• Erectile function: The ability to achieve and maintain an erection.
• Libido: Sexual desire or interest in sexual activity.

For example, a man may continue to have normal erections and libido after a BPH procedure but notice a change in ejaculation. Sexual function can also be affected by age, diabetes, cardiovascular disease, other medications, and the urinary symptoms themselves. A discussion of treatment-related risks will take these factors into account.

Understanding the Potential Side Effects of Medical Therapy

Medications are commonly used to manage BPH symptoms. Their effects on sexual function depend on the type of medicine.

Alpha-blockers
Alpha-blockers, including tamsulosin, silodosin, alfuzosin, doxazosin, and terazosin, relax muscles in the prostate and bladder neck to help urine pass more easily. These medicines generally have little effect on sexual desire or erectile function. However, some can cause changes in ejaculation.

Tamsulosin and silodosin are associated with reduced or absent ejaculation in some men. This is often described as ejaculatory dysfunction. In some cases, the amount of semen released is reduced because of changes in the normal processes involved in ejaculation. The likelihood of this side effect varies by medication and dose. Men who notice a change should discuss it with their doctor, as an alternative medicine may be appropriate.

5-alpha-reductase inhibitors
Finasteride and dutasteride belong to a different group of medicines. They reduce the effects of dihydrotestosterone (DHT), a hormone that contributes to prostate growth. Over time, these medicines can reduce prostate size and the risk of certain complications associated with BPH.

Possible sexual side effects include reduced sexual desire, erectile dysfunction, and changes in ejaculation. Not every man experiences these effects, and the likelihood can vary. Persistent symptoms have been documented, although their frequency, underlying mechanisms, and relationship to the medication remain areas of ongoing research.

How Do Surgical and Minimally Invasive Treatments Affect Sexual Function?

When medication does not provide sufficient relief, or when BPH causes complications, a procedure may be considered. The available options differ in how they relieve obstruction, the extent of tissue treated, and the likelihood of sexual side effects. In general, the less tissue a procedure removes, the more likely it is to preserve sexual function.

Transurethral resection of the prostate (TURP)
TURP is an established surgical treatment for BPH. A surgeon removes obstructing prostate tissue through an instrument passed into the urethra. The procedure provides substantial and lasting improvement in urinary symptoms. However, changes in ejaculation are common and well-documented. Many men experience retrograde ejaculation, in which semen enters the bladder during orgasm rather than leaving the body through the penis.

Erectile dysfunction can also occur, although it is less common than ejaculatory dysfunction. The effects on erectile function vary among patients and may be influenced by their health before treatment.

Holmium laser enucleation of the prostate (HoLEP)
HoLEP uses a laser to separate and remove obstructing prostate tissue. It is an established option for treating BPH, including in men with larger prostates. Like TURP, HoLEP frequently affects ejaculation. Retrograde ejaculation or a substantial reduction in visible semen after the procedure is common. Erectile function is generally maintained, although as always, individual outcomes vary and erectile difficulties remain possible.

Prostatic urethral lift (UroLift)
UroLift uses small implants to move obstructing prostate tissue away from the urethra. It does not remove the tissue or use heat to destroy it. Preservation of sexual function is one of its recognised features. Clinical studies have generally found that erectile and ejaculatory function are well maintained in appropriately selected patients.

However, UroLift is not suitable for every prostate shape or size. The degree of urinary symptom improvement and the likelihood of needing another treatment should also be considered.

Water vapour thermal therapy (Rezum)
Rezum uses controlled doses of water vapour to treat enlarged prostate tissue. Over time, the treated tissue shrinks, helping relieve obstruction. As with other procedures, suitability depends on prostate anatomy, symptom severity, and individual treatment goals.

Sexual function is generally well preserved, and the risk of ejaculatory dysfunction is lower than with tissue-removing procedures such as TURP in many studies. Nevertheless, changes in ejaculation can still occur. Symptom improvement develops over time rather than immediately, and some men may require further treatment.

Where Does Prostatic Artery Embolization (PAE) Fit?

Prostatic artery embolization is a minimally invasive treatment performed by an interventional radiologist. Instead of removing prostate tissue through the urethra, the procedure uses image guidance and small particles to reduce blood flow to selected areas of the prostate. The treated tissue gradually shrinks, which can help relieve urinary obstruction.

PAE is of interest to men who want to explore alternatives to conventional prostate surgery, particularly when sexual function is an important consideration.

Studies have generally reported lower rates of ejaculatory dysfunction after PAE than after TURP. However, changes in ejaculation can still occur. Erectile function is generally well preserved in many patients.

Comparing BPH Treatments and Their Effects on Sexual Function

The following table summarises the general patterns reported in clinical studies. Individual outcomes may differ, and the strength of evidence varies between treatments.

What Should Men Consider Before Choosing A Treatment?

The decision depends on the severity of urinary symptoms, prostate size and anatomy, bladder function, overall health, and the likelihood of complications if treatment is delayed.

• Age and overall health: An older man who is frail or has heart or lung disease may need an approach that reduces anaesthesia or recovery risks. Blood thinners and other medications can also influence procedural planning. Age alone, however, does not rule out surgery.
• Prostate size and anatomy: For smaller prostates, medication or a transurethral incision may be appropriate. For prostates around 30–80 cc, options may include TURP, UroLift, Rezum, or PAE, depending on anatomy and clinical suitability. For larger glands, particularly above 80 cc, HoLEP is an established option. A prominent middle lobe can affect whether certain minimally invasive procedures are suitable.
• Severity of obstruction: Men with mild symptoms may benefit from monitoring or medication. Recurrent urinary retention, bladder stones, repeated infections, or kidney problems caused by obstruction may make a procedure necessary. Poor bladder muscle function can also limit improvement, even after the obstruction is treated.
• Sexual function and fertility: Men who wish to preserve ejaculation may consider UroLift, Rezum, or PAE if they are suitable candidates. TURP and HoLEP generally provide substantial symptom relief but commonly affect ejaculation. Men planning to have children should discuss how these changes may affect natural conception.
• Long-term results: TURP and HoLEP have established records of symptom relief. UroLift, Rezum, and PAE may offer advantages for selected patients, but further treatment may be needed. PAE generally produces less improvement in urinary flow than TURP in comparative studies.

Prostate imaging, urine-flow tests, measurement of urine remaining in the bladder, and other investigations when indicated help guide the decision. The aim is to choose a treatment that provides meaningful symptom relief while accounting for medical risks, sexual priorities, and the likelihood of needing further treatment.

Why Choose RIVEA for PAE?

At RIVEA Vascular Institute, Hyderabad, prostate artery embolization (PAE) is performed by experienced interventional radiologists using advanced image-guided technology. Dr. Arjun Reddy, Co-founder and Chief Interventional Radiologist at RIVEA, performed Hyderabad's first PAE at AIG Hospitals. His experience in image-guided treatments supports an individualised approach to patient assessment and treatment planning.

RIVEA offers:

• Advanced imaging: The Allia IGS 7 hybrid imaging system supports precise, image-guided embolization.
• Minimally invasive treatment: PAE is performed through a small arterial access point, without removing prostate tissue.
• Personalised care: Treatment planning considers prostate anatomy, urinary symptoms, overall health, and sexual function priorities.
• Guidance throughout care: Patients receive support from initial assessment through recovery and follow-up.