Cancer is a complex group of diseases with many possible causes. Listed below are few known causes of cancer, including genetic factors; lifestyle factors such as tobacco use, diet, and physical activity; certain types of infections; and environmental exposures to different types of chemicals and radiation.

• Some types of cancer run in certain families, but most cancers are not clearly linked to the genes we inherit from our parents.
• Tobacco, cigarette, cigar, and smokeless tobacco use, increases chances of cancer.
• Diet, physical activity, excess body weight, and alcohol use may affect your risk of cancer.
• Sun and UV Exposure
• Radiation Exposure and Cancer Risk
• Other Carcinogens