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  2. Cyanosis - Wikipedia

    en.wikipedia.org/wiki/Cyanosis

    Cyanosis is the change of body tissue color to a bluish-purple hue, as a result of decrease in the amount of oxygen bound to the hemoglobin in the red blood cells of the capillary bed. [1] Cyanosis is apparent usually in the body tissues covered with thin skin , including the mucous membranes , lips, nail beds , and ear lobes. [ 1 ]

  3. Livedo reticularis - Wikipedia

    en.wikipedia.org/wiki/Livedo_reticularis

    Livedo reticularis is a common skin finding consisting of a mottled reticulated vascular pattern that appears as a lace-like purplish discoloration of the skin. [1] The discoloration is caused by reduction in blood flow through the arterioles that supply the cutaneous capillaries, resulting in deoxygenated blood showing as blue discoloration ().

  4. Acrocyanosis - Wikipedia

    en.wikipedia.org/wiki/Acrocyanosis

    A medical emergency would ensue if the extremities experience prolonged periods of exposure to the cold, particularly in children and patients with poor general health. [3] However, frostbite differs from acrocyanosis because pain (via thermal nociceptors ) often accompanies the former condition, while the latter is very rarely associated with ...

  5. What Does It Mean if My Fingernails Are a Weird Color?

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  6. List of skin conditions - Wikipedia

    en.wikipedia.org/wiki/List_of_skin_conditions

    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]

  7. Nail (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Nail_(anatomy)

    Filing is also recommended, as to keep nails from becoming too rough and to remove any small bumps or ridges that may cause the nail to get tangled up in materials such as cloth. [21] Bluish or purple fingernail beds may be a symptom of peripheral cyanosis, which indicates oxygen deprivation. Nails can dry out, just like skin.

  8. Frostbite - Wikipedia

    en.wikipedia.org/wiki/Frostbite

    The Wilderness Medical Society recommends covering the skin and scalp, taking in adequate nutrition, avoiding constrictive footwear and clothing, and remaining active without causing exhaustion. Supplemental oxygen might also be of use at high elevations. Repeated exposure to cold water makes people more susceptible to frostbite. [20]

  9. Cold injury - Wikipedia

    en.wikipedia.org/wiki/Cold_injury

    Cold injury (or cold weather injury) is damage to the body from cold exposure, including hypothermia and several skin injuries. [6] Cold-related skin injuries are categorized into freezing and nonfreezing cold injuries. [5] Freezing cold injuries involve tissue damage when exposed to temperatures below freezing (less than 0 degrees Celsius).