Overexposure to UV rays is the most important behavioral risk factor for the development of skin cancer. However, most Americans do not protect themselves from the sun's dangerous rays. According to the results of a recent National Health Interview Survey, fewer than one-third of the adults interviewed protected themselves in any way from excessive sun exposure. Skin cancer is the most common and most rapidly increasing form of cancer in the United States. The three major types of skin cancer are the highly curable basal cell carcinoma and squamous cell carcinomas and the more serious malignant melanoma.
Skin cancer claims thousands of lives.
Basal cell and squamous cell carcinomas can cause substantial illness, but death rates from these cancers are low. Untreated, they can cause considerable damage and disfigurement. This disease can spread to other organs, most commonly the lungs and liver. Malignant melanoma diagnosed at an early stage can usually be cured, but melanoma diagnosed at a late stage is more likely to spread and cause death. Family history of skin cancer.