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Kidneys and urinary system

The kidneys filter out the waste products from the blood that the body does not need. Every kidney has a million small filters, that constantly separate out part of the blood and fluids flowing through the body's circulation. Essentials like salt and nutrients then flow back into the body. Wastes are sent through the bladder and urinary system until they are released from the body as urine. At the same time kidneys also help regulate blood pressure.

Feature: Bedwetting in children and young people

Patient's story

Feature: Enlarged prostate

Research summaries

Urinary tract infections: Do antibiotics help?

Three or more days of antibiotics almost always ensure that the symptoms of an uncomplicated urinary tract infection will go away quickly. Taking antibiotics over five days or more can get rid of the last of the bacteria causing the infection, but the longer the treatment, the more adverse effects there are. more...

Benign prostatic hyperplasia: How do newer procedures compare with standard surgery?

Transurethral resection of the prostate (TURP), a standard surgical procedure for the treatment of benign enlarged prostates, has the best proven effect in relieving the associated symptoms. However, some other procedures might work just as well and cause fewer adverse effects. more...