The medical term for blood in the urine is hematuria. Urine that contains blood can appear pink, red, maroon, or even have a dark smoky color that looks like cola. You may or may not see blood clots, which can look like coffee grounds. Rarely, red urine may be caused by certain foods or medicine. Your doctor will want to test a sample of your urine to confirm that its red color is caused by blood All men who experience blood in the urine as a new problem should see their doctor. Even if you've had blood in the urine in the past, contact your doctor again.