what cause bladder pain and blood in urine?
There are many possible causes of blood in the urine. Bloody urine may be due to a problem in your kidneys or other parts of the urinary tract, such as: 1  Cancer of the bladder or kidney. 2  Infection of the bladder, kidney, prostate, or urethra.  Inflammation of the bladder, urethra, prostate, or kidney (glomerulonephritis)