Skin cancer - the abnormal growth of skin cells - most often develops on skin exposed to the sun. But this common form of cancer can also occur on areas of your skin not ordinarily exposed to sunlight.
Skin cancer develops primarily on areas of sun-exposed skin, including the scalp, face, lips, ears, neck, chest, arms and hands, and on the legs in women. But it can also form on areas that rarely see the light of day - your palms, beneath your fingernails, the spaces between your toes or under your toenails, and your genital area.
Treatment for skin cancer and the precancerous skin lesions varies, depending on the size, type, depth and location of the lesions. Often the abnormal cells are surgically removed or destroyed with cryotherapy, electrocautery or topical medications. Most skin cancer treatments require only a local anesthetic and can be done in an outpatient setting. Sometimes no treatment is necessary beyond an initial biopsy that removes the entire growth.