2021年10月11日 · Explanations about what cancer is, how cancer cells differ from normal cells, and genetic changes that cause cancer to grow and spread.

2024年11月19日 · Find out the basics about cancer, including symptoms, causes and treatments. Learn steps you can take to prevent cancer.

Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. [2] [7] These contrast with benign tumors, which do not spread. [7] Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. [1]

2024年8月19日 · Cancer is when abnormal cells grow out of control and spread to other areas of your body. It can start almost anywhere, including skin, organs, bones and blood.

2010年12月3日 · Cancer is a leading cause of death worldwide, accounting for nearly 10 million deaths in 2020, or nearly one in six deaths. The most common cancers are breast, lung, colon and rectum and prostate cancers.

Cancer starts when cells begin to grow out of control. Here is some information to help you better understand and define cancer.

Dedicated to helping people who face cancer. Learn about cancer research, patient services, early detection, treatment and education at cancer.org.

2023年1月17日 · Learn more about specific types of cancer with the resources below. Early detection is when cancer is found in its early stages. This can increase the effectiveness of treatment and lower the...

Learn about cancer at the American Cancer Society. Find information for specific cancer types: breast, colon, lung, prostate, skin, and more.

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. Support for the best science underpins everything NCI does.