The incidence of skin cancer has increased significantly over the past few years. Sun exposure, particularly in fair skinned individuals, can cause skin cancer which should not be confused with the benign spots of aging. Any spot that peels, crusts, itches, hurts changes color, suddenly appears, or cannot be identified as benign, should be assessed by a dennatologist. These signs may indicate a cancer. Fortunately, most skin cancer can be cured, particularly if recognized and treated early.

There are various types of cancer of the skin. Prolonged or unaccustomed exposure to the ultraviolet (UV) radiation in sunlight increases the risk of developing cancer. Rodent ulcer (mostly found on the face), squamous cell carcinoma and malignant melanoma are common forms of cancer related to long-term exposure to sunlight. Bowen's disease, a rare skin disorder that can be cancerous, may also be related to exposure to sunlight. Less common types of skin cancer include Paget's disease of the nipple and mycosis fungoides. Both produce inflammation similar to that of eczema. "Raposi's sarcoma is a type of skin cancer often found in patients with AIDS.