Urethral cancer is a type of cancer that develops in the urethra. The urethra is a hollow tube that passes urine from the bladder to the outside of your body. In males, the urethra is about 8 inches long and runs from the bladder, through the prostate, to the end of the penis. In females, the urethra is much shorter, at just 1.5 inches. It runs from the bladder to an opening just above the vaginal opening.

Urethral caruncles are usually pink or red. If a blood clot has formed, they may turn purple or black.
These growths are usually small, growing up to 1 centimeter (cm) in diameter. However, cases have been reported where they’ve have grown at least 2 cm in diameter.
A urethral caruncle typically won’t cause any symptoms. Most people don’t even know it’s there until their doctor points it out during a routine examination.