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Blood that enters and mixes with the urine can come from any location within the urinary system, including the kidney, ureter, urinary bladder, urethra, and in men, the prostate. [3] Common causes of hematuria include urinary tract infection (UTI) , kidney stones , viral illness, trauma, bladder cancer, and exercise. [ 4 ]
Hemorrhagic cystitis, characterized by blood in the urine, can occur secondary to a number of causes including: infections, radiation therapy, underlying cancer, medications and toxins. [59] Medications that commonly cause this problem include the chemotherapeutic agent cyclophosphamide with rates of 2–40%. [59]
The upper urinary tract (ureters and kidney) is also imaged for tumors that could cause blood in the urine. This is typically done by injecting a dye into the blood that the kidneys will filter into the urinary tract, then imaging by CT scanning. Those whose kidneys are not functioning well enough to filter the dye may instead be scanned by MRI ...
Cancers of the urinary tract can cause urinary obstruction but the process is more gradual. Cancer of the bladder, prostate or ureters can gradually obstruct urine output. Cancers often present with blood in the urine, weight loss, lower back pain or gradual distension in the flanks. [24]
Hemoglobinuria is a condition in which the oxygen transport protein hemoglobin is found in abnormally high concentrations in the urine. [1] The condition is caused by excessive intravascular hemolysis, in which large numbers of red blood cells (RBCs) are destroyed, thereby releasing free hemoglobin into the plasma. [2]
In men, urethritis is diagnosed by at least one of the following: mucopurulent or purulent urethral discharge on examination, ≥ 2 white blood cells per oil immersion field from a Gram stain of a urethral swab, or positive leukocyte esterase and/or ≥10 white blood cells per high power field of the first-void urine. Men who meet the criteria ...