The male urinary system consists of the kidneys, ureters, bladder, and urethra. The kidneys filter blood, removing waste products and excess fluid. The ureters are thin tubes, about 25–30 cm long, connecting the kidneys to the bladder, which stores urine. The male urethra is longer than the female urethra and passes through the prostate and penis.
The process of urination begins when the bladder fills. Once a certain volume of fluid is reached, the bladder walls contract, allowing urine to exit the body without obstruction.
Ureterocele (an abnormal enlargement of the urethra) is a pathological condition caused by various factors. A portion of the ureter bulges outward, forming an internal sac-like structure. At the same time, the ureter’s lumen narrows, making urination difficult.