Causes of cancer: Cancer is a group of more than 100 different diseases. Benign tumors are not cancer; malignant tumors are cancer. Most cancers are named for the type of cell or the organ in which they begin. When cancer spreads (metastasizes), the new tumor has the same name as the original (primary) tumor. Skin cancer is the most common type of cancer for both men and women. The second most common cancer in men is prostate cancer, in women it is breast cancer. Lung cancer is the leading cause of death from cancer for both men and women in the U.S. Cancer is NOT contagious.
Information about behaviors, exposures, and other factors that can influence the risk of cancer.
Cancer is a complex group of diseases with many possible causes. In this section you can learn more about the known causes of cancer, including genetic factors; lifestyle ...
Read about cancer risk factors, such as age, family history, diet, alcohol and tobacco use, and exposure to sunlight, radiation, chemicals, viruses and bacteria.
Cancer is a class of diseases characterized by out-of-control cell growth. There are over 100 different types of cancer, and each is classified by the type of cell that ...
Studies have discovered definitive causes of cancer. With the knowledge of causes, we now know how we can prevent it. Learn the risk factors of cancer ...