Cancer is a disease that results from the uncontrolled proliferation of abnormal cells. These cells could originate in any tissue of the body. They may either be limited to the tissue or spread to other areas in their vicinity because of a particular that occurs at a genetic level.
These changes can either be inherited or result from the influence of certain environmental factors or a mix of both. External factors which induce cancer-like changes in the cells are known as carcinogens.
Carcinogens are external factors that, when interacting with the body, lead can lead to changes at the genetic level.
These external causes are :
- Physical carcinogens on prolonged exposure can also cause a variety of cases like skin cancers etc. Radiation and ultraviolet light are examples of the same.
- Chemical carcinogens like cigarettes, pesticides, asbestos, alcohol, air pollution, and drinking water.
- Biological carcinogens can be viruses, parasites, and