Question: what does it mean when there is a white ring around a mole?
Answer: A halo nevus is a mole surrounded by a white ring or halo. These moles are almost always benign, meaning they aren't cancerous. Halo nevi (the plural of nevus) are sometimes called Sutton nevi or leukoderma acquisitum centrifugum. They're fairly common in both children and young adults.