One more factor to take care of is a diameter of the skin’s moles. Moles that are okay do not have any life risks. They are usually tiny and flat, not that obvious to a naked eye. The color has one tone, and it does not suddenly change. People with healthy moles do not have painful or irritating sensations around them. Unhealthy moles cause weird feeling as well as the understanding of the fact something is not alright. Pay attention to the size – regular moles do not achieve more than six millimeters across.