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Once fully developed, the effected skin will present with a leathery, "bark-like" texture and remain itchy and inflamed. [3] Common areas of occurrence are noted in points of the body that are easily accessible or prone to itchiness, notably the nape of the neck, wrists, hands, forearms, waist, scrotum, vulva, thighs, lower legs and feet. [4]
Constant scratching causes the skin to thicken. The thickened skin itches, causing more scratching, causing more thickening. Affected area may spread rapidly through the rest of the body. Many hypothesize LSC has a psychosomatic origin. [3] Those predisposed to itch as a response to emotional tensions may be more susceptible to the itch-scratch ...
Also, because scratching or putting pressure on the referred itch does not cause the stimulus area to itch, the relationship between the stimulus and the referred itch is unidirectional. [2] The itching sensation is spontaneous and can cease with continued stimulation. There are two types of referred itch: normal and acquired (pathological).
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Neurodermatitis (lichen simplex chronicus, localized scratch dermatitis) is an itchy area of thickened, pigmented eczema patch that results from habitual rubbing and scratching. Usually, there is only one spot. Often curable through behaviour modification and anti-inflammatory medication. Prurigo nodularis is a related disorder showing multiple ...
It is caused by lesions of the nervous system, peripheral or central, and it involves sensations, whether spontaneous or evoked, such as burning, wetness, itching, electric shock, and pins and needles. [1] Dysesthesia can include sensations in any bodily tissue, including most often the mouth, scalp, skin, or legs. [1]
For example, responding to a local itch sensation is an effective way to remove insects from one's skin. Scratching has traditionally been regarded as a way to relieve oneself by reducing the annoying itch sensation. However, there are hedonic aspects to scratching, as one would find noxious scratching highly pleasurable. [2]
Schamberg's disease, (also known as "progressive pigmentary dermatosis of Schamberg", [1] "purpura pigmentosa progressiva" (PPP), [1] and "Schamberg's purpura" [1]) is a chronic discoloration of the skin found in people of all ages, usually only affecting the feet, legs or thighs or a combination. It may occur as a single event or subsequent ...
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