When you can see blood in your urine, it may look red or smoky brown, or like tea. This is called gross or frank hematuria.
Hematuria is the medical term for blood in the urine.
When blood particles are not as numerous, then they are visible only under a microscope. This condition is called microscopic hematuria. Blood in the urine can come from any condition that results in infection, inflammation, or injury to the urinary system. The urinary system is composed of the kidneys, ureters, bladder, urethra, and in men the male genitals and prostate gland. Typically, visible blood in the urine indicates damage to the lower tract, while microscopic hematuria signifies damage to the kidneys.