By magical fairys tickling you clegnuts
Because of the one-way valve system of the ureters, which connect the kidneys to the bladder. If these ureter valves do not work properly, they can cause urine to back-flow into the ureters and toward the kidneys.
Mainly the urinary sphincters prevent the backflow of urine backwards into the bladder and the kidneys. Sphincters allow one-way flow and to prevent leakage (or in other words, prevent accidental urine loss).
If the Urine is in the bladder and does not flow, you put a catheter through the urethra.
A urine flow test evaluates the speed of urination, or amount voided per second, and the total time of urination.
The internal urethral sphincter is a smooth muscle located at the neck of the urinary bladder and surrounds the opening of the urethra. It helps in controlling the flow of urine from the bladder to the urethra.
UrodynamicsUrodynamicsUrodynamicsUrodynamics
A urine flow test can indicate problems in bladder function, such as an obstruction, that will need further tests to diagnose.
If it doesn't cause pain or impede flow - that is, block or slow down urination - it's no problem.
No.
The Blader contracting and the Prostate relaxing to allow urine to flow
AlkaptonuriaVesicoureteral reflux is the backflow of urine into the kidneys.