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Hypopigmentation is common and approximately one in twenty have at least one hypopigmented macule. Hypopigmentation can be upsetting to some, especially those with darker skin whose hypopigmentation marks are seen more visibly. Most causes of hypopigmentation are not serious and can be easily treated. [5]
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]
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 ...
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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 ...
Hyperpigmentation is excess coloration, or darkening of the skin, [8] while hypopigmentation is a diminished or pallid coloring to the skin. Pigmentation changes in PVA, apparent in the epidermal (outermost) skin layer, may be attributed to incontinence (leaking out) of melanin from melanocytes into the dermal skin layer below. [ 5 ]
The causes of this condition have not yet been completely defined. [3] Patients are usually older persons. [4] The correlation of notalgia paresthetica localization with corresponding degenerative changes in the spine suggests that spinal nerve impingement may be a contributing cause. According to Plete and Massey, "The posterior rami of spinal ...
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.