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Some common genetic causes include mutations in the tyrosinase gene or OCA2 gene. [3] [4] As melanin pigments tend to be in the skin, eye, and hair, these are the commonly affected areas in those with hypopigmentation. [2] Hypopigmentation is common and approximately one in twenty have at least one hypopigmented macule.
Postinflammatory hypopigmentation is a highly prevalent pigmentary disease. It can happen to any type of skin. Nonetheless, individuals with darker skin seem to have it more frequently and visibly, perhaps due to the color contrast with their natural skin. The incidence of postinflammatory hypopigmentation is the same for both sexes. [2]
Melanosomes, which are organelles containing melanin, must be transported and increased during hyperpigmentation and tanning, while they shrink during hypopigmentation. [4] Skin pigmentation is frequently caused by sun exposure. To protect itself against UV radiation from the sun, the body makes more melanin. As a result, the skin may become ...
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telangiectasias, [1] purpura, striae, hypopigmentation [2] Complications: Possible HPA axis involvement [2] Usual onset: within the first 7 days of daily superpotent TCS application under occlusion, within 2 weeks of daily use of less potent TCS or superpotent TCS without occlusion. [2] Causes: Changes in gene regulation and transcription of ...
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 ...
The proximal causes of fiddler's neck are friction and pressure, but both repetitive shearing stress and occlusion with consequent trapping of sweat give rise to progressive damage. [1] This damage along with poor hygiene predisposes the area to local infection, and such infection can progress to scarring and other long-term effects. [ 1 ]
However, the dangers surrounding the masks and others of its kind have been a point of concern for many dermatologists, long before Neutrogena's recall on July 5th.