Understanding Cancer

Cancer begins in cells, the construction blocks that create up tissues. Tissues build up the organs of the body.

Normally, cells produce and divide to figure new cells as the body needs them. When cells raise old, they die, and new cells get their place.

Sometimes this orderly progression goes wrong. New cells shape when the body does not need them, and old cells do not expire when they should. These extra cells can form a collection of tissue called a escalation or tumor.