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Vitiligo (/ ˌ v ɪ t ɪ ˈ l aɪ ɡ oʊ /) is a chronic autoimmune disorder that causes patches of skin to lose pigment or color. The cause of vitiligo is unknown, but it may be related to immune system changes, genetic factors, stress, or sun exposure.
Schamberg's disease is a skin disorder that causes a discoloration of the lower extremities. It usually occurs in the lower extremities and rarely elsewhere. This condition is caused by leaky blood vessels near the surface of the skin. The cause of the leaky capillaries is usually not known.
A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands.
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. 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.
Psoriasis. Psoriasis is a long-lasting, noncontagious autoimmune disease characterized by patches of abnormal skin. [4] [5] These areas are red, pink, or purple, dry, itchy, and scaly. [8] [3] Psoriasis varies in severity from small localized patches to complete body coverage. [3]
Ichthyosis vulgaris (also known as "autosomal dominant ichthyosis" and "Ichthyosis simplex") is a skin disorder causing dry, scaly skin. It is the most common form, and one of the mildest forms, of ichthyosis,: 486 affecting around 1 in 250 people.
Harlequin-type ichthyosis is a genetic disorder that results in thickened skin over nearly the entire body at birth. [4] The skin forms large, diamond/trapezoid/rectangle-shaped plates that are separated by deep cracks. [4] These affect the shape of the eyelids, nose, mouth, and ears and limit movement of the arms and legs. [4]
HHD is characterized by outbreaks of rashes and blisters on the skin. Affected areas of skin undergo repeated blistering and inflammation, and may be painful to the touch. Areas where the skin folds, as well as the armpits, groin, neck, buttocks and under the breasts are most commonly affected.
Ichthyosis (also named fish scale disease) is a family of genetic skin disorders characterized by dry, thickened, scaly skin. The more than 20 types of ichthyosis range in severity of symptoms, outward appearance, underlying genetic cause and mode of inheritance (e.g., dominant, recessive, autosomal or X-linked).
Dermatographic urticaria is sometimes called "skin writing", as it is possible to mark deliberate patterns onto the skin. The condition manifests as an allergic-like reaction, causing a warm red wheal to appear on the skin. As it is often the result of scratches, involving contact with other materials, it can be confused with an allergic ...