Regal Rezum | Water Vapor Therapy for BPH | Regal Hospital, Bengaluru
Center of Excellence
4.9/5 Rating (50+ Cases)
10 Minutes
Day-care procedure
No Surgery
Zero cuts or incisions
Preserved Health
>96% sexual function
US-FDA Cleared
Proven 5+ yr durability
Dr
Dr. Suriraju V
Chief Urologist & Rezūm Specialist
Profile
50+ Successful Procedures

Rezūm Water Vapor Therapy for Enlarged Prostate (BPH)

Gentle, 10-minute outpatient treatment using natural sterile water vapor to clear urinary blockage with no surgical incisions and preserved sexual function.

US-FDA Cleared Technology
Convective Radiofrequency Vapor
10-Minute Outpatient Care
Walk-in, walk-out same day
Preserves Sexual Health
No risk of surgical ED
Top Karnataka Case Volume
Clinical Video

See How Rezūm Works

Understanding Prostate Health

What is BPH?

Benign prostatic hyperplasia (BPH), also called prostate enlargement, is a noncancerous increase in size of the prostate gland. Symptoms may include frequent urination, trouble starting to urinate, weak stream, inability to urinate, or loss of bladder control. Complications can include urinary tract infections, bladder stones, and chronic kidney problems.

Normal Male Urinary Bladder and Prostate Anatomy
Normal Prostate & Unobstructed Urethra
Benign Prostatic Hyperplasia Constricting Urinary Pathway
Enlarged Prostate Constricting Stream
Thermodynamic Water Vapor Application to Prostate Lobe
Targeted Vapor Dissolving Obstruction

“At Regal Hospital, we specialize in the Water Vapor procedure for BPH — providing patients with effective, minimally invasive comfort and improved quality of life.”

Convective Thermal Energy

How Rezum Water Vapor Works

Unlike burning or laser resection, Rezum harnesses the natural thermodynamic properties of steam to gently clear the obstruction without harming surrounding nerve bundles.

1

Targeted Delivery

A specialized sterile delivery device reaches the obstructive prostate lobes via the natural urinary tract under local anesthesia.

2

9-Second Steam Pulse

Sterile water vapor is injected in precise 9-second intervals. The steam travels uniformly through cell interstices without crossing prostate boundaries.

3

Phase Change Energy

As vapor condenses back to water, thermal energy is released evenly, gently disrupting only the obstructive prostate cells.

4

Natural Tissue Clearing

Your body naturally absorbs and clears the treated cells over a few weeks, opening the urethra for unrestricted, smooth urine flow.

Patient-Centric Minimally Invasive Care

Why Choose Water Vapor Therapy

Why Choose Water Vapor Therapy Clinical Infographic
Involves a short, one-day hospital stay
Administered with local anesthesia
Eliminates the requirement for long-term BPH medications
Maintains sexual function
Demonstrates proven effectiveness
Enables a quick recovery period
Provides fast symptom relief
Offers enduring results
Performs as a convenient, in-office procedure
Employs minimally invasive techniques
FDA cleared and endorsed
Notes prostate regression within a month
Evidence-Based Clinical Decision

Rezum vs. Traditional TURP vs. Daily Medications

Compare the clinical parameters to understand why urologists worldwide regard Water Vapor Therapy as the modern gold-standard for benign prostate enlargement.

Clinical Parameter Rezum Water Vapor Conventional TURP Surgery Lifelong Daily Medications
Procedure Duration ✓ 10 Minutes 60 – 90 Minutes Lifelong daily intake
Hospital Stay ✓ Day-Care Only (Same day discharge) 2 – 4 Days Inpatient Outpatient doctor visits
Anesthesia Needed ✓ Local Anesthesia / Light Sedation Spinal or General Anesthesia None
Surgical Cuts / Bleeding ✓ No Cuts, Minimal bleeding Tissue resection, bleeding risk No cuts
Sexual Function Preservation ✓ Preserved (>96% maintain function) High retrograde ejaculation (up to 70%) Libido loss & ED in many patients
Recovery Timeline ✓ Return to activity in 3 to 5 days 4 to 6 weeks rest required Ongoing symptom suppression
Durable Longevity ✓ 5+ Years proven clinical durability High permanence (with tissue scar risk) Symptoms rebound upon stopping
Transparent Clinical Safety Profile

Potential Side Effects of Water Vapor Therapy

Because Rezum uses natural water vapor, adverse effects are typically mild to moderate and resolve spontaneously within a few weeks post-procedure.

Common & Temporary

Mild Discomfort or Swelling

Patients may feel slight pelvic fullness or perineal pressure for the first few days as treated prostate tissue naturally responds to the therapy.

Temporary Urinary Retention

Transient tissue swelling can briefly narrow the urine passage. A temporary catheter is usually placed for 3 to 5 days to ensure effortless bladder drainage.

Irritation or Urgency While Urinating

A mild burning sensation (dysuria) or urgent sensation when urinating is common during the initial healing phase and subsides steadily.

Less Common / Rare

Blood in the Urine (Hematuria)

Traces of light pink urine or microscopic blood may occur intermittently as the body resorbs the treated prostate tissue.

Infections or Inflammation

A localized urinary tract infection is uncommon and readily controlled with a standard short course of preventive oral antibiotics prescribed by our urologists.

Erectile or Ejaculatory Issues

Unlike surgical resection, clinical studies show zero permanent erectile dysfunction risk and an exceptionally low rate (<4%) of ejaculatory alterations.

Minimally invasive, non-surgical treatment for BPH with long-term results

10 min
Procedure duration
Quick, targeted water vapor pulses
Day Care
Admission only
Return home the very same day
No Cuts
No pain, no surgery
Administered via natural urinary passage
Prevalence & Demographics

Who Has BPH?

Prostate enlargement is an almost universal biological progression as men age. Recognizing symptoms early preserves long-term bladder health.

50%
of men by age 50 experience measurable BPH symptoms
90%
of men are affected by age 85 worldwide
40 yrs
BPH clinical awareness and screenings should begin at this age
Confidential 60-Second Assessment

Interactive Prostate Symptom Checker (IPSS)

Answer 4 standard clinical questions to evaluate your urinary symptoms and receive tailored guidance from Regal Hospital’s urology team.

Assessment Progress 0 of 4 Answered
1 Incomplete Emptying: How often do you feel your bladder is not completely empty after urinating?
Rarely / Never
About half the time
Almost always
2 Frequency: How often do you have to urinate again less than 2 hours after finishing?
Rarely / Not often
Frequently during the day
Constantly throughout the day
3 Weak Stream: How often do you notice a weak or sputtering urinary stream?
Strong, normal stream
Noticeable weak stream
Very weak, slow dripping
4 Nocturia: How many times do you typically get up at night to urinate?
0 to 1 time
2 to 3 times
4 or more times
Awaiting Answers

Select Options Above to View Assessment

Please select your answers for each of the 4 clinical questions above to calculate your personalized prostate symptom score and view recommendations.

Clinical Clarifications

Frequently Asked Questions

Find evidence-based answers provided by the Department of Urology at Regal Hospital.

Water Vapor Therapy (Rezum) is a clinically proven, minimally invasive, non-surgical treatment for Benign Prostatic Hyperplasia (BPH). It uses natural thermal energy stored in sterile water vapor to ablate obstructive prostate tissue causing urinary symptoms.
A specialized delivery device introduces targeted micro-injections of radiofrequency-generated sterile water vapor into the hyperplastic prostate tissue. As the steam condenses back to water, it releases convective thermal energy, gently disrupting cell membranes. The body naturally resorbs the treated tissue over subsequent weeks, opening the urinary channel.
It is designed for men aged 50 and above who experience moderate to severe lower urinary tract symptoms (LUTS) secondary to an enlarged prostate (BPH), particularly those who wish to avoid daily medication side effects or invasive surgical resection (TURP).
The actual water vapor delivery takes only around 10 minutes. The entire hospital visit is handled as an outpatient day-care admission, allowing patients to walk in and walk out on the same day.
The procedure is performed under local anesthesia, prostate nerve block, or light sedation to maximize patient comfort. Most men report feeling only mild pelvic pressure rather than acute pain.
Noticeable symptom relief typically starts within 2 to 3 weeks as the treated tissue begins to recede. Continued clinical improvement is experienced up to 3 months following the procedure.
Potential side effects are usually temporary and mild, including slight urinary urgency, mild burning during urination, temporary retention requiring a brief catheter, and light blood in the urine. Crucially, sexual function and ejaculation are preserved in over 96% of men.
Initial results manifest around day 14 to 21. Maximum urinary flow rate improvement and complete bladder emptying satisfaction are typically achieved at 6 to 12 weeks post-procedure.
Yes. Most patients resume regular sedentary work and non-strenuous daily activities within 3 to 5 days. Strenuous physical exertion and heavy lifting should be avoided for approximately 2 to 3 weeks.
Unlike lifelong medications, Rezum eliminates pill compliance and related side effects (like hypotension or erectile dysfunction). Unlike traditional surgery (TURP), it requires no cutting or burning, does not require general anesthesia, involves no prolonged hospital stay, and preserves sexual function.
In Their Own Words

Patient Testimonial Videos

Hear directly from patients who underwent Water Vapor Therapy at Regal Hospital.

Post-Procedure Recovery Story 1
Clinical Outcomes & Relief Story 2
Regal Hospital Patient Review 3
© Regal Hospital, Bengaluru. All rights reserved. Water Vapor Therapy (Rezum) is an FDA-cleared urological procedure.
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