Lentigos are small, localized brown spots and that appear as a result of chronic sun exposure. They usually occur in areas that get the most sun such as the face, neck, chest, back, arms and hands. Note: These are different from age spots and freckles.
What Causes Lentigos/Brown Spots:
Chronic sun exposure leads to the body’s natural response of producing increased pigment cells, which results in these darkly pigmented spots.