Editing Lichen simplex chronicus (section)

{{Short description|Human skin disorder}}
{{Infobox medical condition (new)
| name            = Lichen simplex chronicus
| synonyms        = Neurodermatitis<ref name=Andrew2020/>
| image           = Lichen simplex chronicus - very low mag.jpg
| caption         = [[Micrograph]] of lichen simplex chronicus. [[H&E stain]].
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| symptoms        = [[lichenification|Thick]] leathery skin, exaggerated skin markings, [[papule|small bumps]], patches, [[excoriation|scratch marks]], scale<ref name=Andrew2020/>
| complications   = 
| onset           = Gradual<ref name=Andrew2020/>
| duration        = 
| types           = 
| causes          = Excessive rubbing and [[Scratch reflex|scratching]]<ref name=Andrew2020/>
| risks           = 
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}}
'''Lichen simplex chronicus''' ('''LSC''') is [[lichenification|thick]] leathery skin with exaggerated skin markings caused by sudden [[pruritus|itching]] and excessive rubbing and [[Scratch reflex|scratching]].<ref name=Andrew2020>{{cite book |last1=James |first1=William D. |last2=Elston |first2=Dirk |last3=Treat |first3=James R. |last4=Rosenbach |first4=Misha A. |last5=Neuhaus |first5=Isaac |title=Andrews' Diseases of the Skin: Clinical Dermatology |date=2020 |publisher=Elsevier |isbn=978-0-323-54753-6 |pages=53–54|edition=13th |chapter-url=https://books.google.com/books?id=UEaEDwAAQBAJ&dq=Lichen+simplex&pg=PA53 |language=en |chapter=4. Pruritus and neurocutaneous dermatoses}}</ref> It generally results in [[papule|small bumps]], patches, [[excoriation|scratch marks]] and scale.<ref name=Andrew2020/> It typically affects the neck, scalp, upper eyelids, ears, palms, soles, ankles, wrists, genital areas and bottom.<ref name=Andrew2020/> It often develops gradually and the scratching becomes a habit.<ref name=Andrew2020/>