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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]
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 ...
Skin condition. 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. [ 2]
Ultraviolet radiation is helpful in the treatment of skin conditions such as psoriasis and vitiligo. Exposure to UVA, while the skin is hyper-photosensitive, by taking psoralens is an effective treatment for psoriasis.
222. Black Skin, White Masks ( French: Peau noire, masques blancs) is a 1952 book by philosopher-psychiatrist Frantz Fanon. The book is written in the style of autoethnography, with Fanon sharing his own experiences while presenting a historical critique of the effects of racism and dehumanization, inherent in situations of colonial domination ...
Blaschko's lines, also called the lines of Blaschko, are lines of normal cell development in the skin. These lines are only visible in those with a mosaic [ 1][ 2][ 3] skin condition or in chimeras where different cell lines contain different genes. These lines may express different amounts of melanin, [ 4] or become visible due to a differing ...
Skin cancers are cancers that arise from the skin. They are due to the development of abnormal cells that have the ability to invade or spread to other parts of the body. [ 10] Skin cancer is the most commonly diagnosed form of cancer in humans. [ 11][ 12][ 13] There are three main types of skin cancers: basal-cell skin cancer (BCC), squamous ...
Fitzpatrick scale. The Fitzpatrick scale (also Fitzpatrick skin typing test; or Fitzpatrick phototyping scale) is a numerical classification schema for human skin color. It was developed in 1975 by American dermatologist Thomas B. Fitzpatrick as a way to estimate the response of different types of skin to ultraviolet (UV) light. [2] It was ...