Brown Spots, or Lentigo, are small pigmented spots that occur on the skin and have a clearly defined edge, surrounded by skin that appears normal. The most common, benign, sun induced lesion is a solar lentigo (actinic lentigo, senile lentigo, sun spot, liver spot). They occur in sun exposed areas appearing on the face, arms, tops of hands, and chest. The spots are typically smaller than 4mm in diameter and can be flat or depressed and may be split by fine wrinkles. The lesions are usually brown in color and may range from yellow-tan to black. Older lesions are often darker brown or black and can slowly increase in number and in size. It is most commonly found in individuals over 30 years old. Increased exposure to sun and artificial sources of UV light can cause these to appear at an even younger age.