Our Symptom checker provides clinical advice on what to do next based on your symptoms.
If you have urinary retention, your bladder will feel full but you'll be unable to urinate. If this occurs suddenly, seek urgent medical attention.
Catheters may be needed temporarily or permanently. Find out here about catheter problems, such as leaking, blockages and the tube falling out.
Your urinary system removes waste from your blood in the form of urine. It also helps regulate your blood volume and pressure, and controls the level of chemicals and salts in your body's cells and blood. Learn more here.