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About Cancer

Featured Content

Cancer-Causing Substances in the Environment

Learn about some of the most likely carcinogens to affect human health.

Male doctor shows male patient information on a tablet

Hormone Therapy for Prostate Cancer

A fact sheet that describes hormone therapy and its role in treating prostate cancer.

Looking for a Clinical Trial?

With our basic search form, you can find a trial or contact the NCI for help via phone, email, or online chat.

Your Guide to Cancer

Cancer Basics

Newly Diagnosed

Treatment

Learn more about treatment

Coping with Cancer

Supportive information on managing the physical and emotional effects of cancer and treatment for both patients and caregivers.

Advanced Cancer

Information to help with talking about and coping with advanced cancer, making choices about care, and planning for the end of life.

A female doctor visits with a husband and wife at their home

Managing Cancer Care

Information on choosing a doctor or treatment facility, home care, financial help, insurance coverage, end-of-life planning, and resources to help you avoid scams.

Learn about immune checkpoint inhibitors, one type of immunotherapy used to treat cancer.

Contact Us for Help

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