Although it usually occurs due to benign diseases such as urinary tract infection, urinary tract stone disease, kidney cysts, prostate enlargement, it can also occur due to a more serious and malignant disease.
Urine with blood in it may be pink, red, or cola-colored. A small amount of blood will be enough for the urine to change its color. Bleeding usually does not cause pain, but the passage of a blood clot into the urine can be painful. Hematuria can be observed in patients with other signs and symptoms.