Urethral cancer is a disease in which cancerous cells form in the tissues of the urethra (the tube that carries urine from the bladder to outside the body). Urethral cancer is a rare genitourinary cancer that occurs more often in women than in men.
Urethral cancer may accompany tumors of the bladder. Tumors of the urethra rarely occur in the absence of tumors elsewhere in the urinary tract, which are more frequently associated with chronic infection and scar tissue.