Explanations about what cancer is, how cancer cells differ from normal cells, and genetic changes that cause cancer to grow and spread. Accurate, up-to-date, comprehensive cancer information from the U.S. government's principal agency for cancer research.

Context Explanation

Information from the National Cancer Institute about cancer treatment, prevention, screening, genetics, causes, and how to cope with cancer. Alphabetical list of all cancers, with links to disease-specific and general information about treatment, coping, screening, prevention, clinical trials, and other topics. This page is a gateway to basic information about how cancer develops, trends in cancer cases and deaths, and how cancer affects different populations. This page answers questions like, is cancer genetic?

Insight Material

Can cancer run in families? How do genetic changes cause cancer? Should I get genetic testing for cancer risk?