A mole, also called a nevus, is a growth on the skin due to the clustering of pigment cells. It usually takes the form of a brown or black dot or “splotch”. Most adults have 10 to 40 moles. The vast majority are completely harmless and require no attention, but may be removed for cosmetic reasons or if they are bothersome, either by a doctor or by trying herbal remedies. Some moles, however, can signify melanoma - a potentially deadly skin cancer that is much, much easier to cure if the malignancy is caught and treated early.