Explanations about what cancer is, how cancer cells differ from normal cells, and genetic changes that cause cancer to grow and spread.

May 7, 2025 · Basic information about cancer statistics in the United States and how they are used to understand the impact of cancer on society and to develop strategies that address the …

Find the locations of NCI-designated cancer centers by area, region, state, or name that includes contact information to help health care providers and cancer patients with referrals to clinical …

A fact sheet about genetic testing for inherited cancer risk. Includes who should consider testing, and how to understand test results.

May 15, 2025 · Radiation therapy is a type of cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors. Learn about the types of radiation, why side effects …

A fact sheet that outlines the available evidence regarding use of cellular/mobile telephones and cancer risk.

May 15, 2018 · Radiation therapy has side effects because it not only kills or slows the growth of cancer cells, it can also affect nearby healthy cells. Many people who get radiation therapy …

Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Rates calculated using SEER*Stat. Population counts for …

Studies of water contaminants that are thought to be associated with cancer risk, including arsenic, disinfection byproducts, nitrate, and Per- and Polyfluoroalkyl Substances (PFAS).

The NCI's Cancer Information Service can answer general cancer-related questions posed by patients, their families, the public, and health care professionals. A qualified medical …