Thickened Skin
An abnormal increase in skin thickness or hardness — ranging from friction-related calluses to pathological conditions including psoriasis, lichen simplex, and actinic keratoses.
Quick answer
Thickened skin (hyperkeratosis) describes an abnormal increase in the thickness of the outer skin layer (stratum corneum) — producing hard, rough, or callus-like skin. ICD-10: L85 (acquired keratoderma), L57.0 (actinic keratosis); ICD-11: EA90. Causes range from friction-related calluses to psoriasis, lichen simplex, and actinic keratoses.
Recognition
Do any of these feel familiar?
Skin that feels rough, tough, or leathery rather than soft and supple — visible thickening at pressure sites, plaques, or a generalised hardening quality.
What is Thickened Skin?
An abnormal increase in skin thickness or hardness — ranging from friction-related calluses to pathological conditions including psoriasis, lichen simplex, and actinic keratoses.
Approaches Commonly Explored
Commonly explored for conditions related to Thickened Skin, grouped by mechanism — select your subtype above to highlight the most relevant path.
How to use these approaches
Most people begin with Stabilise approaches, then progress toward Resolve and Sustain.
Systemic or neuroinflammation and immune dysregulation.
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