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 …

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

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

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

Read about cancer symptoms, causes, treatment, stages, prognosis, diagnosis, types, and prevention. Learn what cancer is and what causes it. Inform yourself about the role viruses play in contributing to …

Dec 11, 2025 · Cancer is a disease characterized by the uncontrolled multiplication of abnormal cells in the body. There are numerous types of cancers, with certain types being major causes of sickness …

Jan 17, 2023 · Cancer is a group of diseases that occur when abnormal cells divide rapidly and spread. Learn the types, causes, treatments, and prevention.

What is cancer? Cancer is a large group of diseases with one thing in common: They happen when normal cells become cancerous cells that multiply and spread. Your genes send instructions to your …

Dec 8, 2025 · What’s cancer? Cancer develops when normal cells acquire genetic changes, called mutations, that allow them to escape the body’s normal “checks and balances”.

Jul 1, 2024 · The major types of cancer are carcinoma, sarcoma, melanoma, lymphoma, and leukemia. Carcinomas -- the most commonly diagnosed cancers -- originate in the skin, lungs, breasts, …