Learn About Cancer
Get in-depth information to help you understand cancer.
Our comprehensive guides can help you learn about diagnosis, treatment, and risk factors for many specific types of cancer.
Select a cancer type
Our Mission
Together with our supporters, the American Cancer Society saves lives and creates a world with less cancer and more birthdays by helping people stay well, helping people get well, by finding cures, and by fighting back. As a global grassroots force of more than 3 million volunteers, we are working every day in every community to eliminate cancer as a major health problem. To learn more or to get help, visit cancer.org or call 1-800-227-2345.
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