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Freckles are not a skin disorder, but people with freckles generally have a lower concentration of photo-protective melanin, and are therefore more susceptible to the harmful effects of UV radiation. It is suggested that people whose skin tends to freckle should avoid overexposure to sun and use sunscreen. [3] [4]
Melanocytes from light skin cells cocultured with keratinocytes give rise to a distribution pattern characteristic of light skin. [92] Freckles usually only occur in people with very lightly pigmented skin. They vary from very dark to brown in colour and develop a random pattern on the skin of the individual. [93]
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 March 2025. "Skin pigmentation" redirects here. For animal skin pigmentation, see Biological pigment. Extended Coloured family from South Africa showing some spectrum of human skin coloration Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among ...
Most often, what you’re seeing is either the reemergence of freckles or a new sun spot. Allow our experts to explain the difference ahead. Meet the Experts What’s the Difference Between ...
UVB can cause the formation of freckles and dark spots, both of which are symptoms of photoaging; these are most common in people with fair or light skin. [7] With frequent long-term exposure to UVB rays, signs of photoaging might appear and precancerous lesions or skin cancer may develop. [4]
The mom of two, from Georgia, simply chalked them up to being in the sun. "Honestly, I thought they were sun spots. I thought they were going to say, 'just your skin aging.
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Xeroderma pigmentosum (XP) is a genetic disorder in which there is a decreased ability to repair DNA damage such as that caused by ultraviolet (UV) light. [1] Symptoms may include a severe sunburn after only a few minutes in the sun, freckling in sun-exposed areas, dry skin and changes in skin pigmentation. [1]