The number of pigment, or color-containing, cells decreases. The color-containing cells that are left tend to get bigger and group together as age spots. Chronic sun damage speeds up the development of these spots. Long-term sun protection, including the use of appropriate sunscreen products , can help prevent age spots. A healthcare provider can diagnose age spots by examining the person's skin.
Age spots cause no long-term effects.
Age spots are not contagious and cause no risk to others. Age spots are not generally treated, unless the individual requests treatment for cosmetic reasons. Sometimes scarring or excessive pigment loss occurs as a complication of treatment. Methods of treatment that destroy the outer layer of skin create blisters and a fine peeling of the pigmented skin tissue. After recovery, an individual can return to normal activities.