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Improving the lives of all people through cancer research

People Affected by Cancer

Cancer patient and caregiver speaking with a doctor.

NCI is the nation’s trusted source for cancer information. We are here for you with information about causes and risk factors, symptoms, how cancer is diagnosed, and treatment options.


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Support for the best science underpins everything NCI does. Explore our resources to help researchers conduct their work and apply for funding and training opportunities.

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Build Your Quit Plan

Use NCI’s Smokefree.gov tools and resources to create a plan to quit smoking or vaping.

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NCI Fiscal Year 2025 Professional Judgment Budget Proposal

Each year, NCI prepares a professional judgment budget to lead progress against cancer.

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Contact Us for Help

NCI offers free information on cancer topics in English and Spanish. Get live help at 1-800-4-CANCER.

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Bringing Data to Life for Cancer Research