What are the Histological Changes Observed in UV-Damaged Skin?

Histologically, UV-damaged skin shows several distinctive changes. The keratinocytes, which are the primary cell type in the epidermis, may display signs of apoptosis or programmed cell death. Additionally, there may be an increase in melanin production as the skin attempts to protect itself from further damage. Over time, chronic UV exposure can lead to a thickened stratum corneum and decreased elasticity in the skin due to damage to collagen fibers in the dermis.