Rezum is an advanced technology designed to treat enlarged prostate without surgery or medication. This new method utilises water vapour therapy, which involves inserting instruments through the urethra, followed by hot steam injections into the prostate gland. The steam causes the prostate tissue to shrink, eventually relieving urethral constriction and restoring normal urination. Dead prostate cells are naturally eliminated by the body, improving symptoms in as little as two weeks, with optimal results seen within three months.
Understanding Enlarged Prostate
The prostate gland, part of the male reproductive system, plays a role in semen production. As men age—typically around 50 years—the prostate can enlarge, especially in the area surrounding the urethra. This results in symptoms such as difficulty urinating, urinary retention, frequent night-time urination, and urinary incontinence.
Symptoms of an Enlarged Prostate:
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Weak urine stream and straining to urinate
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Delayed urination
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Inability to urinate
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Frequent urination at night
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Urinary incontinence or leakage
How Rezum Works
Rezum therapy injects hot steam into the prostate gland, shrinking it over time as the body naturally eliminates the affected cells. As the prostate shrinks, the urethra widens, allowing easier urination. This non-invasive procedure requires only 10-15 minutes and is performed without the need for general anaesthesia, ensuring a fast recovery with minimal discomfort.
Suitable Candidates for Rezum
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Patients experiencing side effects from prostate medication, such as erectile issues or reduced ejaculation
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Patients seeking an alternative to major surgery
Pre-Procedure Evaluation
Before undergoing Rezum, patients undergo an ultrasound to assess prostate size, prostate cancer screening (PSA test), and a urine test to check for infections. Patients on anticoagulants may need to temporarily stop their medication, as advised by their doctor.
Procedure Highlights
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Short procedure time (10–15 minutes)
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Safe and minimally invasive, with a quick recovery
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No general anaesthesia required
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Long-lasting results with no need for repeated treatments
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Immediate cessation of prostate medication after improvement
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No negative effects on sexual health, including erections or sexual function
Article by Dr. Piyawat Tantanatip
Urologist, Thainakarin Hospital