Benign prostatic hyperplasia (BPH), or an enlarged prostate, is a common condition that can affect urinary function as men grow older. As the prostate enlarges, it may compress the urethra and make it difficult for urine to pass normally. Symptoms such as a weak urine stream, frequent urination, urgency, and waking multiple times during the night often lead patients to seek medical advice.
Among the minimally invasive treatment options available for BPH, Rezum therapy has gained attention because it uses the natural energy stored in water vapour to treat enlarged prostate tissue. Understanding how Rezum treatment works can help patients discuss suitable treatment options with their urologist.
What Is Rezum Treatment?
Rezum treatment is a minimally invasive procedure designed to relieve urinary symptoms caused by benign prostatic hyperplasia. Instead of removing prostate tissue through surgery, the procedure delivers controlled water vapour directly into the enlarged areas of the prostate.
The heat contained within the steam affects the targeted prostate tissue while preserving the surrounding structures as much as possible. Over time, the body naturally removes the treated tissue, allowing the urinary passage to become less obstructed.
Step-by-Step: How Rezum Treatment Works
1. Initial Medical Assessment
Before recommending Rezum therapy, the urologist performs a detailed evaluation to confirm that urinary symptoms are caused by BPH.
The assessment may include:
- Medical history
- Symptom evaluation
- Physical examination
- Urine analysis
- Blood investigations
- Prostate-specific antigen (PSA) testing when appropriate
- Ultrasound examination
- Urine flow testing
- Measurement of residual urine after voiding
- Cystoscopy when clinically indicated
These investigations help determine whether Rezum treatment is appropriate.
2. Preparation for the Procedure
The treatment is performed using a specialised instrument inserted through the natural urinary passage. Because the procedure does not require external incisions, skin wounds are avoided.
Depending on the patient's condition, local anaesthesia, sedation, or another suitable form of anaesthesia may be used.
3. Delivery of Water Vapour
A small treatment device is positioned inside the urethra at the level of the enlarged prostate tissue.
Controlled bursts of sterile water vapour are then delivered into carefully selected areas of the prostate.
Each steam injection lasts only a few seconds and is directed precisely into the tissue responsible for blocking urine flow.
4. Heat Reaches the Enlarged Tissue
When the steam enters the prostate tissue, it releases stored thermal energy.
This controlled heat affects the enlarged prostate cells without requiring surgical cutting or removal of tissue during the procedure.
The surrounding tissue is largely preserved because the water vapour remains within the targeted treatment zones.
5. Natural Healing Process Begins
Following treatment, the body's immune system gradually clears the affected prostate tissue.
This process occurs naturally over several weeks.
As the treated tissue is absorbed, the enlarged prostate becomes smaller, reducing pressure on the urethra.
6. Urinary Flow Gradually Improves
Because the reduction in prostate tissue happens progressively, symptom improvement is also gradual.
Many patients notice improvements in:
- Urine flow
- Urinary frequency
- Night-time urination
- Urinary urgency
- Difficulty starting urination
- Feeling of incomplete bladder emptying
The timing of improvement varies from person to person.
What Happens After Rezum Treatment?
Temporary urinary symptoms are common during the early healing period.
Patients may experience:
- Mild burning during urination
- Increased urinary frequency
- Urinary urgency
- Small amounts of blood in the urine
- Mild pelvic discomfort
- Temporary difficulty passing urine
Some patients may require a urinary catheter for several days while swelling settles.
Follow-up appointments help monitor recovery and symptom improvement.
Potential Benefits of Rezum Therapy
For appropriately selected patients, Rezum treatment may offer several potential advantages:
- Minimally invasive procedure
- No external surgical incision
- Usually performed as a day-care treatment
- Short procedure duration
- Gradual improvement in urinary symptoms
- Reduced obstruction caused by enlarged prostate tissue
- Potential preservation of sexual function in suitable patients
- Relatively short recovery compared with some conventional surgeries
The expected benefits vary according to prostate size, anatomy, and the patient's overall health.
Who May Be Suitable for Rezum Treatment?
Rezum therapy may be considered for men who:
- Have urinary symptoms caused by BPH
- Do not achieve adequate relief from medication
- Prefer a minimally invasive treatment
- Wish to avoid or delay conventional prostate surgery
- Have prostate anatomy considered suitable after evaluation
Not every patient with urinary symptoms is a candidate for Rezum therapy, making professional assessment essential.
When Rezum May Not Be Appropriate
Certain patients may require a different treatment approach depending on factors such as:
- Very large prostate size
- Specific prostate anatomy
- Urinary retention requiring urgent management
- Bladder stones
- Recurrent urinary infections
- Other urinary tract conditions
- Suspected prostate cancer requiring further evaluation
The most appropriate treatment is determined only after a comprehensive clinical assessment.
Recovery Following Rezum Treatment
Recovery is generally gradual rather than immediate.
Patients are commonly advised to:
- Drink adequate fluids
- Avoid heavy lifting for a short period
- Follow medication instructions carefully
- Attend scheduled follow-up visits
- Contact their doctor if severe symptoms develop
Most daily activities can usually be resumed according to the treating doctor's advice.
Conclusion
Understanding how Rezum treatment works helps patients appreciate why it has become an important minimally invasive option for managing urinary symptoms caused by an enlarged prostate. By delivering controlled water vapour into enlarged prostate tissue, the procedure allows the body to gradually remove the treated tissue and improve urine flow over time.
Every patient requires an individual assessment before treatment is recommended. Those who would like to understand whether Rezum therapy is suitable for their condition can learn more through SDC Prostate Centre.
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