The bladder, in men and women, is the organ in which urine collects. Bladder cancers mostly affect people over 50 years old, and affect more men than women. There are many industries in which workers can be exposed to chemicals that increase the risk of bladder cancer perhaps 20 years later. These include rubber workers, aniline dye workers, petroleum workers and spray painters. Chemical dyes (Aromatic amines) are often responsible. Smokers are at increased risk because of the chemicals (carcinogens) in tobacco. Another condition that predisposes to bladder cancer is Schistosomiasis U024 Map 393.
Cancer of the bladder caused 0.3% of all deaths worldwide in 2002, an average of 29 deaths per million people per year and 3% of all deaths from cancer.