Types of skin cancer
Skin cancer is commonly divided into three sub-types, according to the type of skin cell from which the cancerous growth arises. The three most common skin cancers are basal cell cancer, squamous cell cancer, and melanoma. Basal cell cancer is usually present on areas that are exposed to the sun, particularly the face. They tend to be treated easily with surgery or radiation. Squamous cell cancers also spread fairly slowly and are easily treated, whilst melanomas are abnormal growths of cells that spread more quickly and can prove to be fatal.
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. A cancerous skin lesion can appear suddenly or develop slowly. Its appearance depends on the type of cancer.
What causes Skin Cancer?
The incidence of skin cancer is associated with various factors. These include having fair skin, a history of sunburn, and a history of excessive sun exposure, a tendency to develop moles on your skin, a family history of skin cancer, a personal history of skin cancer, and a weakened immune system.