solar lentigines – MySymptom

Why do I get dark brown age spots specifically on my upper chest and décolletage?

1. Introduction Dark brown age spots on the upper chest and décolletage develop primarily due to decades of cumulative ultraviolet radiation exposure on a region of skin that is remarkably thin and frequently unprotected by clothing. This chronic sun damage disrupts the normal function of melanocytes, causing them to permanently clump together and overproduce melanin … Read more

Why do I get dark hyperpigmented spots on the back of my hands as I age?

1. Introduction Dark hyperpigmented spots on the back of the hands, clinically known as solar lentigines or actinic lentigines, result from cumulative ultraviolet radiation exposure over decades. This chronic sun exposure stimulates local melanocytes to produce excess melanin, which clumps together in the basal layer of the epidermis, creating distinct pigmented macules. While these spots … Read more