N32: Other disorders of bladder

N32.0: Bladder-neck obstruction

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 bladder is like a balloon. There is a hollow space on the inside. This hollow space is surrounded by the bladder wall. The bladder becomes narrower towards the opening at the bottom of the bladder. The narrow opening is also sometimes called the bladder neck. There are a number of things that can cause the bladder neck to narrow. For example, it may be due to an inflammation. The inflammation may make the skin of the bladder neck become swollen or scarred. Your bladder neck is narrower than usual.

People with a narrowed bladder neck may have problems urinating. They often feel the urge to urinate. It is also possible that they cannot empty their bladder completely. This can cause the bladder and urinary passages to become inflamed more easily than normal.