Urodynamic testing is a specialised assessment of how well the bladder stores and releases urine. It provides objective information when symptoms have not responded as expected, or when mixed symptoms make the cause unclear, identifying the reason for urinary problems and guiding the next step in treatment. The investigation is performed in a comfortable clinical environment with a dedicated nurse and is usually well tolerated.
TREATMENTS
Urodynamics
Components of Urodynamic Testing
• Uroflowmetry and post-void residual: A simple, non-invasive test where you pass urine into a special toilet that measures stream speed and volume. A bladder ultrasound then checks for retained urine.
• Filling cystometry: A fine catheter slowly fills your bladder while a second small line in the rectum (like a tiny water balloon) helps measure bladder pressures — looking for leakage, overactivity and bladder compliance. May be combined with ultrasound.
• Pressure-flow study (voiding urodynamics): After filling, pressures are recorded while you pass urine, helping separate blockage from a weakened bladder muscle. May be combined with ultrasound to check the bladder, muscles and emptying.
• Video urodynamics: Filling and voiding studies combined with X-ray imaging, usually performed in hospital for complex cases.
Risks and Considerations
All procedures carry risks, which your surgeon will discuss with you in detail. These may include:
• Temporary mild burning when passing urine
• A small risk of urinary infection — drink well afterwards and let us know if you develop a fever
Recovery at a glance: The test takes about 30–45 minutes; you can drive home and return to normal activities immediately.
1
Pre-Test Preparation
You will be asked to arrive with a comfortably full bladder. Any urinary infection is treated before the test is performed.
2
Flow and Residual Assessment
You pass urine into a flow meter, after which an ultrasound of the bladder measures any remaining urine.
3
Pressure Measurements (If Required)
Fine catheters are placed into the bladder and rectum. The bladder is filled with saline while pressures are continuously monitored. You will be asked to report sensations of urgency or discomfort.
4
Results and Treatment Planning
The urodynamic report is reviewed with you in detail at follow-up and used to guide the most appropriate, evidence-based treatment for your specific bladder problem.
Our Approach
