Oct 11, 2021 · Explanations about what cancer is, how cancer cells differ from normal cells, and genetic changes that cause cancer to grow and spread.

The Annual Report to the Nation on the Status of Cancer has statistics on cancer deaths and new cases (incidence).

Dec 2, 2025 · Learn about tests for breast cancer biomarkers, such as hormone receptors and HER2, and how results of these tests can help plan treatment.

Apr 16, 2025 · An authoritative source for cancer statistics in the US. We collect incidence, prevalence and survival data and publish reports on these and cancer mortality. For those …

May 14, 2025 · There is some evidence that inherited cancer-related genetic changes, often called germline mutations, may bear some responsibility for the growing number of early-onset …

Sep 15, 2025 · View PDFs showing the latest portfolio of CTEP-supported cancer clinical trials open or upcoming in the ETCTN (updated monthly). For full functionality, download and open …

May 8, 2025 · Changes in cancer screening guidelines, advances in imaging technologies, and increased surveillance of high-risk individuals may also have led to earlier cancer diagnoses, …

Staging is the process of determining how much cancer is within the body (tumor size) and if it has spread. Learn about the TNM Staging system and other ways that stage is described.

Learn more about NCI’s Cancer Therapy Evaluation Program (CTEP) resources for cancer research, clinical trial protocol development and clinical trial operations resources.

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 …