Your kidneys make urine, a fluid made of liquid wastes filtered from your blood. This fluid travels down your ureter tubes to your bladder, and from there, it passes through the urethra and out of ...

Q: My primary-care doctor sent me for a blood test and said my prostate-specific antigen number was too high, then sent me to a urologist. The urologist said I am retaining urine in the bladder. After ...

Urine is composed of fluid and waste materials; it is discharged by the urinary tract, which is the drainage system of the body. If all body parts in the urinary tract coordinate and function ...

Medically reviewed by Matthew Wosnitzer, MD Key Takeaways Ureteropelvic junction obstruction is a condition where urine flow from the kidney to the bladder is blocked.This blockage is often present at ...