Most of the moles that people have are not cancerous growths but one cannot ignore the fact that many of the moles are and they also happen to be the early symptoms of skin cancer. If such a symptom happens to be a melanoma mole, there is no way for a patient to know about it unless s/he gets it checked by a skin doctor. A patient must watch out for some features in the moles before visiting a dermatologist. These are also known as the ABCDE of skin cancer detection. They are asymmetry (A), border irregularity (B), Colour (C), Diameter (D) and Evolving (E).