Bladder cancer is the rapid, uncontrolled growth of abnormal cells
in the lining of the bladder, the part of the urinary tract that serves as a
collection pouch for urine. The most common symptom of bladder cancer is blood
in the urine (hematuria). Other symptoms include pain during urination and
frequent urination.
The cause of bladder cancer is not known, but it is more likely to
develop in smokers than in nonsmokers. Men are more likely than women to
develop bladder cancer.
Treatment depends on the stage of the cancer and may include
surgery, chemotherapy, biological therapy, or radiation therapy.
