When urine is stored in the urinary bladder, it allows urination to be controlled and timed. During urination, the urine exits the bladder and flows into the urethra, which allows urine to flow out of the body. The normal capacity of the bladder is 400-600 ml of urine.
Overly Distended Bladder
Normally, the bladder expands as it is filled with urine, much like a water balloon. After a person relieves themselves, the bladder returns to its unfilled size. However, it can become overly filled, leading to a distended bladder.
A distended bladder generally occurs when there is a loss of tone in the bladder muscles resulting in failure to detect the elevated pressure exerted by the urine. In some cases, there is an obstruction that does not allow urine to flow into the urethra. This may cause pain, a feeling of fullness, and the urge to urinate frequently.
Urinary Retention
The urinary bladder helps control urination so we don’t need to relieve ourselves constantly. As the bladder is filled with urine produced by the kidneys, pressure builds up within the bladder and expands. The expansion or distention of the bladder sends signals to the brain once it’s full. This triggers the urge to void the bladder or take a trip to the restroom.
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