About this page. This is a plain English summary of Rezum water vapour therapy. It does not replace medical advice from your own doctor or specialist.
For full information, references, and patient brochures, please read the detailed page.
What is Rezum?
Rezum is a treatment for an enlarged prostate (BPH). It uses tiny puffs of steam (heated water vapour) to gently shrink the part of the prostate that is squeezing the urine tube.
It is a day procedure. There are no cuts on the outside of the body.
How does it work?
A small camera (cystoscope) with a tiny needle attached is passed through the urine tube. The needle is placed into the prostate, and a 9-second puff of steam is delivered. This is repeated a few times, depending on prostate size.
The steam releases its heat as it spreads through the tissue. The treated cells die over the next few weeks and are absorbed by the body, which makes the prostate channel wider over time.
What is the procedure like?
Rezum is usually done in a day surgery setting. It can be done under sedation or a light anaesthetic. The treatment itself takes only a short time.
You will usually go home the same day. A urinary catheter (a thin tube to drain the bladder) is needed for a few days afterwards while the prostate settles.
Symptom improvement is gradual. It usually takes a few weeks to a few months to feel the full benefit, as the body absorbs the treated tissue.
Why might someone choose Rezum?
- It is less invasive than open or laser prostate surgery.
- It does not leave a permanent implant in the body.
- It can usually be done as a day procedure.
- Studies have reported that Rezum preserves sexual and ejaculatory function for many men. The full references are listed on the detailed page.
Dr Kooner's experience
Dr Kooner has performed Rezum in Sydney since it became available in Australia. The practice has reached a milestone of more than 200 Rezum procedures, formally recognised by the manufacturer (Boston Scientific) in 2023.
Important things to know
- For a few days after the procedure, it is normal to feel some burning when passing urine, more frequent need to go, urgency, or some blood in the urine.
- A urinary catheter is needed for a short period afterwards.
- As with any procedure, there is a small risk of urinary infection, retention (trouble passing urine), or temporary worsening of symptoms in the first weeks.
- Rezum may not be the best option for everyone. Very large prostates, or certain prostate shapes, may be better treated with another method.
- Some men need a further treatment over time.
What you can do next
- Read the full detailed page for full information, patient brochures, and references.
- Short version overview of enlarged prostate (BPH) and the full menu of treatments.
- Request a second opinion on a treatment plan.
- Call 02 8382 6980 to make an appointment.