In darker skin tones, how does UV-induced damage often present regarding pigmentation irregularity?
Answer
Persistent, patchy hyperpigmentation
While lighter skin tones frequently develop discrete freckles or sun spots (ephelides) in response to UV stimulation of melanocytes, the response in darker skin tones differs significantly. Instead of forming clearly delineated spots, the damage often results in a more generalized but uneven darkening. This appears as persistent, patchy hyperpigmentation across broader areas. Although the end visual result varies by native melanin level, the fundamental cause—overstimulation and erratic function of the pigment-producing melanocytes due to UV stress—remains the same mechanism.
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