Cancer is a disease characterized by the uncontrolled proliferation of cells resulting from mutations in their DNA. In addition to this fundamental biological mechanism, numerous factors contribute to the development or increase the risk of cancer. These factors primarily include: Genetic predisposition, Environmental exposures, Excessive alcohol and tobacco use, Intense sun exposure, Exposure to carcinogenic substances, Radiation, Obesity, Stress, Lack of physical activity, Certain hormonal medications, Immunosuppressive drugs, and Air pollution.