Topics: Conditions and Diseases : Cancer
Normal cells in the body grow, divide, and die. Cancer is the name for abnormal cells that grow and divide, but don't die like they should. When the DNA in cells is damaged and the body can't repair it, cancer happens. This damage can be inherited, which is why doctors ask about family history. Often, the damage is caused by exposure to something in the environment, like smoking.
Personal Pages
Sites created by kids, teens, or their families.
More »
Help build the largest human-edited directory on the web.