Cancer is a collection of diseases. In cancer, some of the body’s cells begin to divide without stopping and spread into surrounding tissues. It 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 it develops, however, this orderly process breaks down. As cells become 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 develop growths called tumors.
Types
There are more than 100 types of cancer.
- Carcinoma
- Sarcoma
- Leukemia
- Lymphoma
- Multiple Myeloma
- Melanoma
- Brain and Spinal Cord Tumors