Pūnaha pukumimi, whatumanawa me mimi Bladder, kidney and urinary system

The urinary system includes your kidneys, ureters, bladder and urethra. This system filters your blood, removing waste and excess water.

Blood in the urine (haematuria)

Blood in wee (urine) is called haematuria.The most common causes are a urine infection or a kidney infection.
Chronic kidney disease

Kidney disease can go on for a long time without you noticing. If you are at risk of kidney disease, you need to know what it is and how to prevent it.
Urinary catheters

Sometimes a person needs help passing wee (urine). This may be because of a blockage, or because they cannot control when they wee.
Urinary obstruction (blockage)

Some illnesses and conditions can block your flow of wee. This usually happens in the tube that connects your bladder to the outside (urethra). It can be serious.
Urine infections (cystitis)

The infection can make weeing painful and urgent. You need antibiotics to clear the infection.