Skin cancer is a condition in which malignant cells form in the tissues of the skin. There are different types of skin cancer, but they all share certain common risk factors, which are listed below:
-Excessive exposure to ultraviolet radiation, either in sunlight or artificially with lamps and the use of tanning booths or beds.
-Exposure to certain chemicals such as arsenic and some types of oils .
-Exposure to radiation, such as that produced by radiotherapy treatments.
