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Dermatitis herpetiformis
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Dermatitis herpetiformis is a chronic skin condition that comes paired with celiac disease. People who have it get small blisters and a relentless itch, the kind that scratching doesn't touch. Picture a coat of varnish on wood with a few crumbs trapped underneath: the varnish lifts in spots, and that's where the burning starts.
What's behind those blisters is the body's own defense system. It makes antibodies called IgA, the proteins that normally go after anything that doesn't belong in the body, and these pile up in small clusters just beneath the epidermis, the outermost layer of skin. There they set off inflammation, and that's where the itching and blistering come from. The surprising part is that the gut may be causing little trouble, or none at all: the skin acts up either way, even when digestive symptoms are mild or absent.
In brief
Dermatitis herpetiformis is a chronic skin disease linked to celiac disease. It causes an intensely itchy rash with small blisters.
IgA antibodies are made by the immune system. In this disease, they build up in small clusters just beneath the epidermis, the skin's surface layer, where they trigger inflammation.
It can occur even when digestive symptoms are mild or absent.
Sources (2)
- National Institute of Diabetes and Digestive and Kidney DiseasesDermatitis Herpetiformis: Skin Manifestation of Celiac DiseasePublished
- American Journal of Clinical DermatologyDermatitis Herpetiformis: An Update on Diagnosis and ManagementPublished
This page explains the topic in general terms; it does not tell anyone what treatment to follow.
Updated