N32: Other disorders of bladder

N32.3: Diverticulum of bladder

The bladder sits low down in the abdomen and collects the urine. The urine is produced in the two kidneys. The urine flows from the kidneys into the bladder via the ureters. When you pass water, the urine flows from the bladder via the urethra and out. The ureter and urethra are referred to as urinary passages.

The bladder is like a balloon. There is a hollow space on the inside. This hollow space is surrounded by the bladder wall.

If the urine is no longer able to flow out of the bladder properly this may put extra pressure on the bladder. Increased pressure in the bladder over a long period of time increases the likelihood of pouches forming in the bladder wall. Pouches in the bladder wall can also be congenital, which means one was born with this condition. A pouch is protruding out of your bladder wall. If the pouches or the urinary passages become inflamed, this may cause problems. You may have pain when urinating. You may often feel the urge to urinate, particularly at night-time. Stones may also form in the bladder.