Diagnostics·Diagnostics
Bladder scan
Informed by recognized medical guidance
Overview
A bladder scan is a painless, non-invasive test that uses ultrasound waves to check how much urine is left in your bladder after you have urinated. It helps doctors see if you are emptying your bladder completely, which can be a sign of certain health issues.
Key facts
- The scan is quick, usually takes less than 5 minutes, and does not involve any needles or radiation.
- It is commonly used to diagnose urinary retention (when the bladder does not empty fully), a condition that can lead to infections or kidney damage if left untreated.
- A bladder scan is safe for all ages, including children and pregnant women, and is performed with a handheld device placed on your lower belly.
Yes, bladder scans are a routine part of urology diagnostics. They are used in hospitals, GP surgeries, and some outpatient clinics whenever there are concerns about bladder function.
Bladder scans can be needed by anyone—men, women, and children—but are especially common in older adults, people with prostate problems, nerve conditions, or after certain surgeries.