Fact Sheets

Melanoma
Melanoma is a type of skin cancer that forms in the cells that produce skin color. Learn about symptoms and treatment.
Skin Cancer
A disease caused by ultraviolet light that comes from the sun’s rays.
Basal Cell Carcinoma (BCC)
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.
Squamous Cell Carcinoma
Squamous cell carcinoma is a cancer in the middle and outer skin layers caused by ultraviolet (UV) exposure. Learn about symptoms and treatment.
Merkel Cell Carcinoma
Merkel cell carcinoma is a rare type of skin cancer that usually develops on areas of skin that are exposed to the sun. Learn about symptoms and treatment.
Seborrheic Keratosis
A common type of noncancerous skin tumor that resembles a wart and may bleed or be itchy.
Actinic Keratosis (AK)
Actinic keratosis (AK) is a scaly and rough patch of skin caused by years of sun damage. Learn about symptoms and treatment.
Melanocytic Nevi (Moles)
Melanocytic nevus is the medical term for moles. They can develop on any part of the body and in most cases, they don't require treatment.
Photoaging (Sun Damage)
Photoaging is when the sun prematurely—and sometimes dangerously—ages the skin. Learn about symptoms and treatment.
Cancer Surgery
Cancer surgery is any procedure to remove cancerous tumors and surrounding tissue. Learn more about these procedures.