Frequently Asked Questions Skin Cancer
Frequently Asked Questions Home > Frequently Asked Questions > Skin Cancer
 [Printer-friendly version -- PDF file, 181 Kb]
Cancer is a disease in which cells become abnormal and form more cells in an uncontrolled way. With skin cancer, the cancer begins in cells that make up the skin. The skin is the body's largest organ. It protects us against heat, light, injury, and infection. It regulates body temperature and stores water, fat, and vitamin D. With skin cancer, new cells form when the skin does not need them, and old cells do not die when they should. These extra cells form a mass of tissue called a tumor. Not all tumors are cancer. Tumors that are cancer can invade and damage nearby tissues and organs, and sometimes can spread to other parts of the body.
Skin cancers are named for the type of cells where the cancer starts. The three types are:
- Basal cell carcinoma (BAY-suhl sel kars-uhn-OH-muh) — usually occurs on parts of the skin that have been in the sun a lot, such as the face. It is slow-growing and rarely spreads to other parts of the body.
- Squamous cell carcinoma (SKWAY-muhss sel kars-uhn-OH-muh) — also occurs on parts of the skin that have been in the sun. But also can be found on parts of the skin not exposed to the sun. This type sometimes spreads to other organs inside the body.
- Melanoma (mel-uh-NOH-muh) — the most serious type, this skin cancer is likely to spread to other parts of the body if not caught and treated early. It is much less common than the other types.
Skin cancer is the most common type of cancer in the United States. About one million Americans get it each year. The number of new cases of skin cancer appears to be rising each year. The number of deaths due to skin cancer, though, is fairly small. The good news is that skin cancer is now almost 100 percent curable if found early and treated promptly.
Ultraviolet (UV) radiation from the sun is the main cause of skin cancer. Other sources of UV radiation, such as sunlamps and tanning booths, also can cause skin cancer. Although anyone can get skin cancer, the risk is greatest for people who have:
- skin that tans poorly or burns easily
- a large number of moles, especially abnormal moles
Most skin cancers appear after age 50. But the sun's damaging effects begin at an early age. So, protection should start in childhood to prevent skin cancer later in life.
For More Information
To learn more about skin cancer, please visit the National Cancer Institute web sites http://www.nci.nih.gov/cancertopics/types/skin and http://www.nci.nih.gov/cancertopics/types/melanoma.
You also can find out more about skin cancer by contacting womenshealth.gov at 1-800-994-9662 or the following organizations:
National Cancer Institute
Cancer Information Service
Phone number: (800) 422-6237
Internet address: http://cis.nci.nih.gov
Division of Cancer Prevention and Control, CDC, HHS
Phone number: (800) 232-4636
Internet address: http://www.cdc.gov/cancer/nscpep/index.htm
American Cancer Society
Phone number: (800) 237-2345
Internet address: http://www.cancer.org
American Academy of Dermatology
Phone number: (866) 503-7546
Internet address: http://www.aad.org
The Skin Cancer Foundation
Phone number: (212) 725-5751
Internet address: http://www.skincancer.org
Content last updated December 8, 2008.
|
You may need to download a free PDF reader to view files marked with this icon.
