Melanoma is the most dangerous and aggressive form of skin cancer and develops in the cells that produce melanin – the pigment that gives our skin its color and occurs when damaged skin cells rapidly multiply and form malignant tumors that tend to spread to other parts of the body. Moles can often be confused with melanomas but they often have an irregular shape. The majority of melanomas are black or brown but they can also be pink, red, purple, blue or white. The main cause of melanoma is overexposure to ultraviolet radiation most commonly from sunshine and tanning beds or lamps. If recognized and treated promptly, melanoma can be successfully treated.