Moles Changing Colors, Dark To Light And Disappear. On Started

moles changing colors, dark to light and disappear. on started on my wrist just a circle flat then a raised on started off center of flat on and is raised. tonight I see it has miniature hairs of skin raised into it on top. back in feb. my doc said its nothing when it was flat it changed in about a month 1/2.is it something a dermo needs to see.