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  2. Dermatophagia - Wikipedia

    en.wikipedia.org/wiki/Dermatophagia

    OCD. Dermatophagia (from Ancient Greek δέρμα — lit.skin and φαγείαlit.eating) or dermatodaxia (from δήξις, lit.biting) [3] is a compulsion disorder of gnawing or biting one's own skin, most commonly at the fingers. This action can either be conscious or unconscious [4] and it is considered to be a type of pica.

  3. Von Luschan's chromatic scale - Wikipedia

    en.wikipedia.org/wiki/Von_Luschan's_chromatic_scale

    Skin colors according to von Luschan's chromatic scale. Von Luschan's chromatic scale ( VLS) is a method of classifying skin color. It is also called the von Luschan scale or von Luschan's scale. It is named after its inventor, Felix von Luschan. The equipment consisted of 36 opaque glass tiles which were compared to the subject's skin, ideally ...

  4. Excoriation disorder - Wikipedia

    en.wikipedia.org/wiki/Excoriation_disorder

    Specialty. Dermatology. Psychiatry. Excoriation disorder, more commonly known as dermatillomania, is a mental disorder on the obsessive–compulsive spectrum that is characterized by the repeated urge or impulse to pick at one's own skin, to the extent that either psychological or physical damage is caused. [4] [5]

  5. Blaschko's lines - Wikipedia

    en.wikipedia.org/wiki/Blaschko's_lines

    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 ...

  6. Fitzpatrick scale - Wikipedia

    en.wikipedia.org/wiki/Fitzpatrick_scale

    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 ...

  7. Dermatophyte - Wikipedia

    en.wikipedia.org/wiki/Dermatophyte

    Dermatophyte. Dermatophyte (from Greek δέρμα derma "skin" ( GEN δέρματος dermatos) and φυτόν phyton "plant") [1] is a common label for a group of fungus of Arthrodermataceae that commonly causes skin disease in animals and humans. [2] Traditionally, these anamorphic (asexual or imperfect fungi) mold genera are: Microsporum ...

  8. Human skin color - Wikipedia

    en.wikipedia.org/wiki/Human_skin_color

    Human skin color. Extended Coloured ( Afrikaans: Kleurlinge or Bruinmense) family from South Africa showing some spectrum of human skin coloration. Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among individuals is caused by variation in pigmentation, which is the result of genetics (inherited ...

  9. Color terminology for race - Wikipedia

    en.wikipedia.org/wiki/Color_terminology_for_race

    Identifying human races in terms of skin colour, at least as one among several physiological characteristics, has been common since antiquity.Such divisions appeared in rabbinical literature and in early modern scholarship, usually dividing humankind into four or five categories, with colour-based labels: red, yellow, black, white, and sometimes brown.