A dermatologist can perform a thorough skin examination, often using dermoscopy, and may recommend a biopsy if necessary. The skin’s melanin production is a defense mechanism, but over time, this defense becomes overwhelmed.
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Contributing factors include genetic predisposition, where some individuals naturally have more active melanocytes, and cumulative sun damage that may not have been protected during earlier years. While sunspots are uniform in color and have a smooth, flat texture, melanomas often display asymmetry, uneven borders, and a mix of colors like black, blue, or red.
Understanding the Biology Behind Sunspots The formation of a sunspot on skin begins when ultraviolet light stimulates melanocytes, the cells responsible for producing melanin, the pigment that gives skin its color. Primary Causes and Contributing Factors The primary cause of sunspots is chronic exposure to UV radiation from the sun or tanning beds.
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Preventing new sunspots requires a consistent approach to sun safety. Unlike a tan, which fades as melanocytes redistribute and shed, these clumped melanocytes and their pigment remain in the skin for years, making the spot persistent.
More About What is a sunspot on skin
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More perspective on What is a sunspot on skin can make the topic easier to follow by connecting earlier points with a few simple takeaways.
