BPH and Erectile Dysfunction: Understanding the Link

What is BPH?

Benign prostatic hyperplasia (BPH) is a non-cancerous enlargement of the prostate gland that becomes more common as men get older. As the prostate grows, it can press on the urethra and the bladder, leading to urinary symptoms. Despite the alarming-sounding name, BPH is not prostate cancer and does not turn into it.

Typical lower urinary tract symptoms include:

• A weak or interrupted urine stream
• Difficulty starting to urinate
• A frequent or urgent need to go, especially at night
• A feeling that the bladder is not fully empty

How is BPH connected to erectile dysfunction?

BPH and erectile dysfunction (ED) frequently appear together, and researchers believe several mechanisms explain the overlap. Both conditions become more common with age, both are influenced by overall vascular and metabolic health, and the nerve and blood-vessel pathways that supply the bladder and the penis share common ground.

There is also a recognised role for nitric oxide signalling. Reduced nitric oxide activity in the lower urinary tract is associated with both urinary symptoms and difficulties achieving an erection. This shared biology is one reason a single class of medicine can sometimes help with both. If erectile difficulties are new or troubling for you, our overview of erectile dysfunction explained is a useful starting point.

Can BPH treatments affect erections?

This is an important and sometimes overlooked point. Some medicines used for BPH can themselves influence sexual function. For example, certain treatments that shrink the prostate may, in a minority of men, reduce libido or affect ejaculation, while some bladder-relaxing medicines can alter ejaculation in different ways.

This does not mean treatment should be avoided. It means an open conversation with your doctor is valuable, so that the benefits for your urinary symptoms can be weighed against any effect on sexual function. Many men find that better urinary control improves their quality of life and confidence overall.

PDE5 inhibitors and the dual approach

Phosphodiesterase type 5 (PDE5) inhibitors, such as sildenafil and tadalafil, are commonly prescribed for ED. Tadalafil in particular is also used to manage BPH symptoms in some men, because it can relax smooth muscle in the prostate and bladder neck as well as in the blood vessels of the penis.

A few points are essential:

• PDE5 inhibitors must never be combined with nitrate medicines (used for angina), as the combination can cause a dangerous drop in blood pressure.
• They are prescription medicines, and a doctor or pharmacist should assess your suitability and review your other medications.
• Always read the patient information leaflet so you understand how and when to take them.

You can learn more in our Sildenafil guide or compare options in our piece on Tadalafil vs Sildenafil. To see the available products, browse our erectile-dysfunction range.

Lifestyle steps that support both

Because BPH and ED share vascular and metabolic roots, general health measures often help on both fronts:

• Staying physically active and maintaining a healthy weight
• Limiting alcohol and caffeine, particularly in the evening
• Stopping smoking
• Managing blood pressure, cholesterol and blood sugar

When to see a doctor

Urinary symptoms should always be assessed rather than assumed to be "just age". A doctor can confirm whether the cause is BPH and rule out other conditions. Likewise, because erectile difficulties can be an early sign of cardiovascular problems, they are worth discussing even if they feel embarrassing. A clinician can look at the whole picture and tailor a plan that respects both your urinary and sexual health.

If you would like to explore products and guidance together, you can shop all of our men's health range.

General information only — not medical advice. Always read the patient information leaflet and consult a doctor or pharmacist before starting any medication.