Sunspots form when melanocytes, cells that produce pigment, are triggered to create more melanin. Over time, this pigment can cluster in one area, leading to darker patches that don’t fade like a typical tan. Once formed, sunspots can persist for years unless addressed.
Certain factors can have a major influence on the development of sunspots:
1. Cumulative UV Exposure
Sun damage isn’t exclusive to beach days. Walking outside, driving, or sitting by a window can all expose you to UV radiation. These seemingly small doses of sun add up over time, and can eventually lead to visible changes in skin tone.
2. Skin Tone
Melanin offers some natural protection against UV rays, which means people with lighter skin tones might be more prone to sunspots. However, melanin production isn’t sufficient enough to fully prevent UV damage.
3. Genetics
Variations in genes can impact how your skin responds to UV radiation, including the production and distribution of melanin. If susceptibility to sunspots runs in your family, you might be more likely to develop them.
4. Aging
As the skin ages, melanocytes can become fewer and less active, leading to a reduction in melanin production. This can cause uneven pigmentation or age spots, commonly seen in older skin.