Melanoma is a type of cancer that develops from the pigment-producing cells known as melanocytes. These cells are responsible for producing melanin, the pigment that gives skin its color. Melanomas can develop anywhere on the skin, but they are most likely to appear in areas exposed to the sun, such as the back, legs, arms, and face. However, they can also form in less-exposed areas like the soles of the feet, palms, and under the nails.
