What it is
If not treated, a long-lasting blockage can damage the kidney.
Treatment depends on the cause and may include draining the urine with a tube, removing a stone, or surgery.
Common signs
- Pain in the side or back
- Pain when peeing or needing to pee often
- Feeling sick
- High temperature if infected
- Often no symptoms, especially in babies
How it is usually diagnosed
- Ultrasound scan
- Blood and urine tests
- CT scan or kidney function scans
Records worth keeping
Keeping these together makes each appointment easier, especially when you see a new doctor:
- Kidney ultrasound reports over time
- Kidney function results
- Urology letters
- Pregnancy or baby scan reports
Questions to ask your doctor
- What is causing the swelling?
- Is my kidney function affected?
- How often should it be scanned?
When to get help right away
Call 112 or go to the nearest emergency department if you have:
- Severe side pain with fever and shivering, or not being able to pee: get urgent medical help
This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.