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Sunspots vs. freckles: How to tell them apart
Both sunspots and freckles involve excess pigment in the skin but have different causes and behaviors.
Freckles are genetic, appear in childhood, and are smaller than 5 millimeters, while sunspots develop from UV exposure after age 30 and can grow larger.
Freckles fade in winter, but sunspots remain visible year-round and do not change seasonally.
Using daily SPF and protective clothing helps prevent both conditions and reduces the risk of skin cancer.