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Vitiligo (/ ˌ v ɪ t ɪ ˈ l aɪ ɡ oʊ /, vi-ti-leye-goh) is a chronic autoimmune disorder that causes patches of skin to lose pigment or color. [1] The cause of vitiligo is unknown, but it may be related to immune system changes, genetic factors, stress, or sun exposure.
Schamberg's disease, (also known as "progressive pigmentary dermatosis of Schamberg", [1] "purpura pigmentosa progressiva" (PPP), [1] and "Schamberg's purpura" [1]) is a chronic discoloration of the skin found in people of all ages, usually only affecting the feet, legs or thighs or a combination. It may occur as a single event or subsequent ...
Darkening depigmented skin is also extremely difficult. [26] Depigmentation causes a permanent and extreme sensitivity to the sun. [27] Vitiligo patients are at risk to contract melanoma, and an annual cancer check-up is recommended. [28] Jackson also covered his skin disorder with clothing wearing long sleeves and long pants.
So common, in fact, that between 1.5 percent and 33 percent of the population may get melasma between the ages of 20 and 40, according to the the Cleveland Clinic. Still, it can be hard to know ...
The skin will appear paler than the surrounding skin surface once an injury has healed. [4] Different areas of the skin may be hypopigmented as a result of other genetic illnesses. Hypopigmentation can be caused by hereditary conditions such as vitiligo, melasma, pityriasis versicolor, pityriasis alba, albinism, and fungal infections. [4]
Pityriasis alba is a skin condition, a type of dermatitis, [1] commonly seen in children and young adults as dry, fine-scaled, pale patches on the face. It is self-limiting and usually only requires use of moisturizer creams.
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
Poliosis circumscripta, commonly referred to as a "white forelock", is a condition characterized by localized patches of white hair due to a reduction or absence of melanin in hair follicles. Although traditionally associated with the scalp, poliosis can affect any hairy area on the body, including eyebrows, eyelashes, and beards.