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What is skin cancer?

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Skin cancer -- abnormal cell changes in the outer layer of skin -- is by far the most common cancer in the world. It can usually be cured, but the disease is a major health concern because it affects so many people. About half of fair-skinned people who live to age 65 will have at least one skin cancer. Most can be prevented by protecting your skin from the sun and ultraviolet rays.

Every malignant skin tumor will, over time, show up on the skin's surface. That makes this the only type of cancer that is almost always found in its early, curable stages.

From: What Is Skin Cancer? WebMD Medical Reference

SOURCES:

American Academy of Dermatology: "Skin Cancer."

National Cancer Institute: "Skin Cancer," "Skin Cancer Treatment (PDQ®) - Patient Version: Treatment Options."

American Cancer Society: "Skin Cancer: Basal and Squamous Cells," "Melanoma Skin Cancer."

Reviewed by Stephanie S. Gardner on September 10, 2017

SOURCES:

American Academy of Dermatology: "Skin Cancer."

National Cancer Institute: "Skin Cancer," "Skin Cancer Treatment (PDQ®) - Patient Version: Treatment Options."

American Cancer Society: "Skin Cancer: Basal and Squamous Cells," "Melanoma Skin Cancer."

Reviewed by Stephanie S. Gardner on September 10, 2017

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What are the different types of skin cancer?

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