Enlarged prostate (benign prostatic hyperplasia)

Benign prostatic hyperplasia (BPH) is a non-cancerous growth of the prostate gland that develops in most men from middle age onwards. It can progressively narrow the urethra and obstruct the outflow of urine from the bladder, producing the characteristic lower urinary tract symptoms (LUTS) of BPH.

What happens in BPH

The prostate sits just below the bladder and wraps around the urethra. As it grows, the inner "transition zone" of the gland increases in volume and can compress the urethral channel. The bladder muscle initially compensates by working harder; over time it can become thickened and irritable (overactive), then ultimately weaker, so emptying is incomplete.

How common is BPH?

Histological evidence of BPH is present in roughly half of men by age 60 and in most men by age 80. Not every man with BPH develops symptoms or needs treatment.

What BPH typically feels like

  • Weaker urinary stream and intermittent flow.
  • Hesitancy at the start of urination.
  • Sensation of incomplete emptying.
  • Frequency and urgency during the day.
  • Getting up to pass urine at night (nocturia).
  • Post-void dribble.

Detailed descriptions and a validated questionnaire sit on the symptoms and IPSS page.

Why BPH matters

Untreated BPH can cause:

  • Urinary retention - sudden inability to pass urine, requiring a catheter.
  • Recurrent urinary tract infections.
  • Bladder stones.
  • Bladder muscle damage with long-term deterioration of emptying.
  • Pressure effects on the kidneys in severe long-standing cases.

These complications tend to develop slowly. Assessment usually involves a flow study, a post-void bladder scan, a PSA blood test, and in some cases transrectal ultrasound or MRI to measure the prostate. See how BPH is assessed.

Treatment choices in outline

  • Lifestyle and medication. Alpha-blockers (tamsulosin, silodosin), 5-alpha-reductase inhibitors (finasteride, dutasteride) or combinations. Often the first step.
  • Laser surgery. HoLEP, GreenLight, HoLBNI, thulium enucleation. See the laser options hub.
  • Non-laser surgery. TURP, UroLift, Rezum, iTind, aquablation and open prostatectomy. Summarised on the alternatives hub.

The choice is tailored to gland size, bladder function, symptom severity, general health, blood thinner use and personal priorities. See when surgery is the right answer.

Considering laser surgery for an enlarged prostate?

You can ask for a second opinion on your symptoms, flow studies and prostate size before deciding between medication, HoLEP, GreenLight, TURP, UroLift, Rezum or iTind.