A disease caused by ultraviolet light that comes from the sun’s rays.
Basal cell carcinoma accounts for 80 percent of all skin cancers. The cause is damage to the DNA of cells in the epidermis, the top layer of the skin.
Melanoma is a type of skin cancer that forms in the cells that produce skin color. Learn about symptoms and treatment.
Squamous cell carcinoma is a cancer in the middle and outer skin layers caused by ultraviolet (UV) exposure. Learn about symptoms and treatment.
Mohs surgery is a type of surgery for skin cancer that minimizes the amount of skin removed. Learn more about this procedure.
Keloids are overgrowths of scar tissue that can sometimes appear when an injury heals. Learn about symptoms and treatment.
A common type of noncancerous skin tumor that resembles a wart and may bleed or be itchy.
Acne is a skin condition characterized by pimples, blackheads, and whiteheads on the face, back, and chest. Learn about symptoms and treatment.
Photoaging is when the sun prematurely—and sometimes dangerously—ages the skin. Learn about symptoms and treatment.
Actinic keratosis (AK) is a scaly and rough patch of skin caused by years of sun damage. Learn about symptoms and treatment.