Written and clinically reviewed by Dr Brendan Dias
Consultant Urologist & Robotic Surgeon · MBBS, MS (General Surgery), DrNB (Urology), IntFRCS (England), FUSANZ, FRACS (Urology)
Last clinically reviewed: 10 September 2026
If you've been researching laser surgery for an enlarged prostate (BPH), you've almost certainly come across two names: HoLEP (Holmium Laser Enucleation of the Prostate) and GreenLight laser (photoselective vaporisation, or PVP). Both are genuine, evidence-based treatments — but they work in fundamentally different ways, and the differences matter when it comes to prostate size, durability of the result, and which procedure is right for you.
This guide explains how each procedure works, how they compare on the outcomes that matter most, and when one is preferred over the other. It is written by Dr Brendan Dias, a Melbourne urologist who performs HoLEP routinely and pioneered Day Case HoLEP at Western Health.
How Each Procedure Works
GreenLight Laser (PVP) — Vaporising Tissue Away
GreenLight laser uses a high-powered green-wavelength laser that is strongly absorbed by blood-rich prostate tissue. The surgeon passes a laser fibre through a telescope in the urethra and sweeps it across the prostate surface, vaporising the obstructing tissue layer by layer. The tissue is turned to vapour on contact — nothing is removed for pathology.
Because the laser energy is absorbed by haemoglobin, bleeding during GreenLight is minimal, which made it a popular option for men on blood thinners. It is technically straightforward to learn and widely available in Australia.
HoLEP — Removing the Whole Adenoma
HoLEP uses a holmium laser to enucleate — shell out — the entire enlarged portion of the prostate (the adenoma) from its outer capsule, much like scooping the segments from an orange. The freed tissue is pushed into the bladder, morcellated into small fragments, and removed for pathological examination.
Because HoLEP removes the adenoma completely rather than shaving or vaporising part of it, it achieves the same completeness as old-fashioned open surgery — through the urethra, with no incisions. This is why HoLEP has the lowest retreatment rate of any BPH procedure and is considered the gold standard at specialist centres. For a detailed walkthrough of the procedure itself, see HoLEP — what to expect before, during and after.
HoLEP vs GreenLight — Side-by-Side Comparison
| Factor | HoLEP | GreenLight Laser (PVP) |
|---|---|---|
| Technique | Laser enucleation — entire adenoma shelled out and removed | Laser vaporisation — tissue vaporised layer by layer |
| Prostate Size | No upper limit — equally effective at 30g or 300g | Best for small-to-moderate prostates (generally under 80–100g) |
| Retreatment Rate | <2% at 10 years — most durable BPH procedure | ~10–15% at 5–10 years — residual tissue can regrow |
| Tissue for Pathology | Yes — complete specimen; incidental cancer found in 5–10% | No — tissue is vaporised, nothing to examine |
| Blood Loss | Minimal — laser seals vessels; safe on most blood thinners | Minimal — excellent haemostasis; traditional choice on anticoagulants |
| Hospital Stay | Same day or 1 night (Day Case HoLEP available) | Same day or 1 night |
| Catheter Duration | 1–2 days (often removed the morning after surgery) | 1–2 days |
| Retrograde Ejaculation | ~75–80% | ~50–70% |
| Erectile Function | Preserved in the vast majority | Preserved in the vast majority |
| Post-op Irritative Symptoms | Temporary urgency/frequency; possible transient stress leakage for 4–8 weeks | Dysuria (burning) can persist for several weeks as vaporised tissue sloughs |
| Availability | Specialist centres — significant learning curve | Widely available |
Why HoLEP Is Preferred for Large Prostates
This is the single most important practical difference between the two procedures.
Vaporising tissue with the GreenLight laser takes time — the surgeon must paint the laser across every square millimetre of the obstructing tissue. In a prostate of 40–60 grams this is efficient. In a prostate of 100, 150, or 200 grams it becomes slow, incomplete, and expensive in theatre time. Studies consistently show that for glands over 80–100 grams, GreenLight removes proportionally less tissue, symptom improvement is smaller, and the need for a second procedure rises sharply.
HoLEP has no size limit. Because the laser follows the natural surgical plane between the adenoma and the capsule, a 150-gram prostate is enucleated with the same technique as a 50-gram one — it simply takes a little longer. The entire adenoma comes out, which is why HoLEP's retreatment rate stays under 2% even in very large glands. For the very largest prostates (typically over 150–200 grams), the alternatives are HoLEP or robotic simple prostatectomy — GreenLight is generally not recommended at that size.
Recovery — What Actually Differs
On paper, recovery looks similar: same-day or overnight stay, catheter for 1–2 days, back to light activity within a week or two. The day-to-day experience differs in two ways:
- After GreenLight, the vaporised tissue edge is left raw inside the prostate and sloughs off over the following weeks. This commonly causes urinary burning and urgency that can persist for 2–6 weeks, sometimes longer.
- After HoLEP, the raw surface is the smooth capsule — there is no sloughing tissue. Irritative symptoms tend to settle faster, but temporary stress incontinence (small leaks with coughing or exertion) is more common in the first 4–8 weeks as the sphincter readjusts. Pelvic floor exercises started before surgery speed this recovery considerably. Permanent incontinence is very rare (under 1%).
Both procedures preserve erectile function in the vast majority of men. Retrograde ejaculation is common after both — somewhat more frequent after HoLEP because the bladder neck is opened more completely. Men for whom preserving ejaculation is a priority should ask about ejaculation-sparing HoLEP or minimally invasive options such as UroLift or Rezum.
The Pathology Advantage — an Often-Overlooked Difference
Because GreenLight vaporises tissue, nothing is available for the pathologist to examine. After HoLEP, the entire removed adenoma is sent for histopathology — and incidental prostate cancer is found in approximately 5–10% of specimens. Most of these are low-grade and simply trigger appropriate monitoring, but for some men it is an important early diagnosis that vaporisation would have missed entirely.
When Is GreenLight Still a Reasonable Choice?
GreenLight PVP remains a legitimate, evidence-based procedure. Situations where it may be a reasonable option include:
- Smaller prostates (under 60–80g) — where the durability gap between the procedures is less pronounced
- Men who must continue anticoagulants — GreenLight has a long track record here, although modern HoLEP is equally safe with most blood thinners continued
- Where HoLEP expertise is not locally available — a well-performed GreenLight by an experienced operator beats a poorly performed HoLEP
For a broader view of where laser surgery sits among all the options — medications, Rezum, UroLift, iTIND, TURP and HoLEP — see the BPH treatment options compared guide and the HoLEP vs TURP comparison.
About Dr Dias
Dr Brendan Dias is a fellowship-trained Melbourne urologist with subspecialty expertise in minimally invasive and robotic surgery. He performs HoLEP routinely across Melbourne's western and northern suburbs, pioneered Day Case HoLEP at Western Health, and serves as a HoLEP proctor — developing and implementing pathways to train surgeons learning the technique.
Because Dr Dias offers the full spectrum of BPH treatments — from office-based procedures through to HoLEP and robotic simple prostatectomy — his recommendation is based on your prostate size, symptoms and goals, not on the limits of a single technique.
Frequently Asked Questions
Is HoLEP better than GreenLight laser?
For most men, HoLEP offers more durable results. HoLEP removes the entire enlarged adenoma, giving a retreatment rate under 2% at 10 years, compared with roughly 10–15% for GreenLight laser vaporisation (PVP). HoLEP can also treat any prostate size, provides tissue for pathology, and typically involves shorter catheter time. GreenLight remains a reasonable option for smaller prostates or men on anticoagulants who need a widely available procedure.
Can GreenLight laser treat a large prostate?
GreenLight laser photoselective vaporisation (PVP) can technically be used on larger prostates, but it becomes progressively less practical and less complete as gland size increases. Vaporising tissue one layer at a time in a prostate over 80–100 grams takes significantly longer, removes less tissue, and leaves a higher risk of regrowth. For large prostates, HoLEP is generally preferred because it removes the entire adenoma regardless of size.
Which has a faster recovery — HoLEP or GreenLight?
Recovery is broadly similar. Both procedures usually involve a catheter for 1–2 days, and many patients go home the same day or after one night. GreenLight patients sometimes have slightly more post-operative urinary burning (dysuria) because vaporised tissue is left in place to slough off. HoLEP patients may have temporary stress leakage for 4–8 weeks. Most men are back to normal activities within 2–4 weeks with either procedure.
Does HoLEP or GreenLight affect sexual function?
Both procedures have a similar effect. Erectile function is preserved in the vast majority of men with either technique. Retrograde ejaculation (semen passing into the bladder during orgasm) occurs in approximately 75–80% of men after HoLEP and roughly 50–70% after GreenLight. Orgasm sensation is preserved. Men considering future fatherhood should discuss ejaculation-sparing techniques before proceeding.
Is GreenLight laser cheaper than HoLEP?
Both procedures are Medicare-listed and attract a Medicare rebate, and private health insurance with hospital cover substantially covers hospital and anaesthetic fees for both. Out-of-pocket costs vary with your level of cover and the hospital used. Dr Dias' rooms can provide a detailed cost estimate at your consultation.
Why doesn't every urologist offer HoLEP?
HoLEP has a recognised learning curve — it requires specific training, dedicated holmium laser equipment, and a morcellator. GreenLight PVP is technically simpler to learn and more widely available. Outcomes for both procedures are strongly operator-dependent, which is why it is worth seeking a surgeon who performs HoLEP regularly. Dr Dias performs HoLEP routinely and pioneered Day Case HoLEP at Western Health.
The Bottom Line
Both HoLEP and GreenLight laser are safe, minimally invasive treatments for BPH. The decisive differences are durability and size: HoLEP removes the entire enlarged adenoma, treats any prostate size, provides tissue for pathology, and has a retreatment rate under 2% at 10 years — roughly five to ten times lower than GreenLight vaporisation. For men with larger prostates or those wanting the most durable one-time solution, HoLEP is the stronger choice. A consultation with Dr Dias will establish your prostate size and help you decide which procedure genuinely fits your situation.