Cancer is a group of diseases that begin in cells, the building blocks of life. Cells are essential parts of the body, and when they are damaged they can cause many problems. Under normal conditions, cells grow and divide to produce more cells when the body needs them. However, sometimes, these cells keep dividing causing a growth of tissue, which is called a tumor.
Tumors are generally benign or malignant. Benign tumors are not considered cancer and can often be removed from the body, without coming back. Benign tumors are rarely threatening to the body. …
