Skin cancer is the No. 1 most common type of cancer in the U.S. That's one of the reasons that May is National Skin Cancer Awareness Month. Many Americans are unaware of their risk for skin ...

Foot melanoma is a type of cancer that ... across the skin, rather than inward toward the body’s organs and systems. When on the foot, it most often occurs on the upper surface.

The onset of skin reactions and injuries depends on the dose received by the skin. Effects are distinguished in prompt (< 2 weeks), early (2-8 weeks), midterm (6-52 weeks) and long-term (>40 weeks).