Cancer begins in the cells, which are the building blocks of your body. Normally, new cells form as you need them, replacing old cells that die. Sometimes, this process goes wrong. New cells form when you don’t need them, and old cells don’t die when they should. The extra cells can form a tumor. Benign tumors aren’t cancer while malignant ones are. Malignant tumor cells can invade nearby tissues or break away and spread to other parts of the body.
Read more to view related video clips
[tubepress mode=’tag’, tagValue=’Cancer in Children medical’]