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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]
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. [ 1] The major function of this system is as a barrier against the external environment.
Dermatitis is a term used for different types of skin inflammation, typically characterized by itchiness, redness and a rash. [1] In cases of short duration, there may be small blisters, while in long-term cases the skin may become thickened. [1] The area of skin involved can vary from small to covering the entire body.
1% of people [ 4] Vitiligo ( / ˌvɪtɪˈlaɪɡoʊ /) 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. [ 5][ 6] Treatment options include topical medications, light therapy ...
Atopic dermatitis (AD), also known as atopic eczema, is a long-term type of inflammation of the skin. [2] AD is also often called simply eczema but the same term is also used to refer to dermatitis, the larger group of skin conditions. [2] [5] AD results in itchy, red, swollen, and cracked skin. [2]
Free ( Mozilla Public License) an Office suite; allows to export (and import, with accuracy limitations) PDF files. Microsoft Word 2013. Proprietary. Desktop software. The 2013 edition of Office allows PDF files to be converted into a format that can be edited. Nitro PDF Reader. Trialware.
Seborrhoeic dermatitis (also spelled seborrheic dermatitis in American English) is a long-term skin disorder. [ 4] Symptoms include flaky, scaly, greasy, and occasionally itchy and inflamed skin. [ 2][ 3] Areas of the skin rich in oil -producing glands are often affected including the scalp, face, and chest. [ 4]
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 ...