The bladder is a hollow organ in your lower abdomen that stores urine. Bladder cancer occurs in the lining of the bladder. It is the sixth most common type of cancer in the United States.
Smoking is a major risk factor for bladder cancer. Exposure to certain chemicals in the workplace is another. People with a family history of bladder cancer or who are older, white or male have a higher risk.
Sources
MedlinePlus - Bladder Cancer
