About 6 years ago I developed a small halo nevus on my back it coincided with getting chicken pox at the age of 30 so I didn't think to much about it. i saw a dermatologist 3 years ago and he spotted it and said it was a harmless halo nevus. I looked at my stomach this morning and have noticed that I have a faint halo around a mole on my tummy that has been there for years. The mole is the same and looks perfectly healthy but I am worried because when I google it says mostly develop in late teens. I will go to GP but wondered if anyone could reasure me that you get halo nevus in late 30's. Feeling a bit stressed.