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Back to Dermatology Diseases
Lichen simplex chronicus
Lichen simplex chronicus is a skin disorder characterized by chronic
itching and scratching. The constant scratching causes thick,
leathery, brownish skin.
Causes
This is a skin disorder characterized by a self-perpetuating
scratch-itch cycle:
- It may begin with something that rubs, irritates, or scratches the
skin, such as clothing.
- This causes the person to rub or scratch the affected area. Constant
scratching causes the skin to thicken.
- The thickened skin itches, causing more scratching, causing more
thickening.
The skin may become leathery and brownish in the affected area. This
disorder may be associated with atopic dermatitis (eczema) or
psoriasis. It may also be associated with nervousness, anxiety,
depression, and other psychological disorders.
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It is common in children, who chronically scratch insect bites and
other areas. It can also be common in mentally retarded children who
have chronic repetitive movements.
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