What are the causes of urinary bleeding?

Urinary bleeding, also called hematuria, is caused by several conditions, including kidney disease, kidney stones, kidney infection, urinary tract infection and kidney failure, according to MedlinePlus. Blood in the urine can be easily apparent or visible only under a microscope, and it can be a sign of serious medical condition.

Other signs of hematuria include the presence of red blood cells detected in a lab test, blood clots in the urine and discomfort with urination. Blood in the urine can come from a kidney, the ureters, the bladder or the urethra, states WebMD. Treatment for hematuria symptoms address the underlying condition.