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What Is Cancer?

Cancer is a critical disease, where abnormal cell growth with the potential to invade or spread to other parts of the body. The cancer signs and symptoms may be a new lump, abnormal bleeding, a prolonged cough, unexplained weight loss, and a change in bowel movements among others. In all types of cancer, some of the body’s cells begin to divide without stopping and spread into surrounding tissues.

Cancer can start almost anywhere in the human body, which is made up of trillions of cells. Normally, human cells grow and divide to form new cells as the body needs them. When cells grow old or become damaged, they die, and new cells take their place.

When cancer develops, however, this orderly process breaks down. As cells become more and more abnormal, old or damaged cells survive when they should die, and new cells form when they are not needed. These extra cells can divide without stopping and may form growths called tumors.

Many cancers form solid tumors, which are masses of tissue.

Types of Cancer

There are more than 100 types of cancer. Types of cancer are usually named for the organs.

  • Carcinoma
  • Sarcoma
  • Leukemia
  • Lymphoma
  • Multiple Myeloma
  • Melanoma
  • Brain and Spinal Cord Tumors