Rezum: Minimally invasive water vapor therapy for BPH

Last updated: May 18, 2026

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Rezum system, a novel ablative procedure in benign prostatic hyperplasia (BPH) was approved by US FDA since 2015. Currently, there are lots of scientific papers confirmed its pros on improving urinary symptom. We will discuss in detail about this cutting-edge technology.

What is Benign Prostatic disease? Would you possibly get rid of it?

How does Water Vapor therapy shrink the prostate gland?

Water Vapor therapy for benign prostatic hyperplasia – Patient instructions

• Urology center Bangkok hospital Thailand Booking online 02-310-3009 bhquro@bdms.co.th
• Samitivej Sriracha hospital Chonburi 088-022-1445

As we all know that benign prostatic hyperplasia or BPH is one of the most common issues in elderly gentlemen. The Rezum procedure will not conduct any scooping technique or even cut any tissue from the prostate gland. A special needle delivers water heat at 103 degrees Celsius targeting prostatic tissue, causing necrosis and shrinkage naturally over time. Patient can notice significant clinical improvement within 1 month post-Rezum.

Rezum – Pros and Cons

Pros of Rezum	Cons of Rezum
Can be done under sedation only	Need long term follow up data
No hospitalization needed	Not suitable with urinary retention history
No erectile dysfunction complication	Not suitable with recurrent urinary tract infection history
Short procedure time	Not suitable with > 120 mL prostate size
Significant urinary symptom improvement	Not suitable with prostate radiation history
	Most patients required urethral catheterization post procedure

If you have any questions on Rezum, please talk to your trusted Urologist or it would be my honor if you text me. See ya!

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Frequently Asked Questions

Q1: What is Rezum and how does it treat BPH?

Rezum is a minimally invasive water vapor therapy for benign prostatic hyperplasia (BPH) approved by the US FDA in 2015. It uses a special needle inserted through an endoscope to deliver water vapor heated to 103 degrees Celsius directly into the prostate tissue. The heat causes the targeted prostatic cells to become necrotic and shrink naturally over time, improving urinary flow without surgery.

Q2: Is Rezum better than TURP for BPH?

Rezum and TURP serve different patient profiles. Rezum offers significant advantages including no hospitalization, no erectile dysfunction risk, short procedure time, and the ability to perform under sedation only. However, TURP has decades of long-term evidence and is more suitable for larger prostates over 120 mL or patients with a history of urinary retention. Your urologist will recommend the most appropriate option based on your prostate size and symptom severity.

Q3: Who is not suitable for Rezum?

Rezum is not recommended for men with a history of urinary retention, recurrent urinary tract infections, prior prostate radiation, or prostate size greater than 120 mL. A thorough urological assessment including prostate size measurement and urinary flow testing is required before determining candidacy for the Rezum procedure.

Q4: When will I notice improvement after Rezum?

Most patients begin to notice significant improvement in urinary symptoms within 1 month after the Rezum procedure. The treated prostate tissue gradually shrinks as the body naturally reabsorbs the necrotic cells. A temporary urinary catheter is typically required in the immediate post-procedure period while swelling subsides.

Q5: Is Rezum available in Bangkok?

Yes. Dr. Soarawee Weerasopone was among the first urologists in the region to introduce Rezum Water Vapor Therapy, and the procedure is available at Bangkok Hospital Headquarters. Dr. Soarawee has extensive experience with this technology and can assess whether Rezum is the right treatment option for your BPH.

If you are experiencing urinary symptoms from BPH and would like to explore Rezum therapy, Dr. Soarawee Weerasopone offers specialist consultations at Bangkok Hospital Headquarters. Book a Consultation.

Disclaimer: This content is written and reviewed by Dr. Soarawee Weerasopone, a board-certified urologist at Bangkok Hospital Headquarters. It is intended for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any medical treatment.