question: Hello doctor, I have had this mole on my leg since I was a teenager, and I am 31 years old now. I remember it being lighter in color and more oval, whereas now it is more of a triangle with darker pigmentation and two shades of brown. I measured it, and it is about 4 mm in width. I have an olive skin tone and never used a tanning bed. Though at times, I have not used sunscreen, and have had sunburn, but never blistering from what I can recall. I have attached a picture.