From the American Academy of Dermatology website:
“Basal cell carcinoma (BCC) is the most common form of skin cancer. More than two million cases of this skin cancer are diagnosed in the United States each year.
This skin cancer usually develops on skin that gets sun exposure, such as on the head, neck, and back of the hands. BCC is especially common on the face, often forming on the nose. It is possible to get BCC on any part of the body, including the trunk, legs, and arms.
People who use tanning beds have a much higher risk of getting BCC. They also tend to get BCC earlier in life.
This type of skin cancer grows slowly. It rarely spreads to other parts of the body. Treatment is important because BCC can grow wide and deep, destroying skin tissue and bone.