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What is dermatitis herpetiformis? What does it have to do with celiac disease?
In 1994 I was diagnosed with celiac disease, which led me to create Celiac.com in 1995. I created this site for a single purpose: To help as many people as possible with celiac disease get diagnosed so they can begin to live happy, healthy gluten-free lives. Celiac.com was the first site on the Internet dedicated solely to celiac disease. In 1998 I foundedÂ The Gluten-Free Mall, Your Special Diet Superstore!, and I am the co-author of the book Cereal Killers, and founder and publisher of Journal of Gluten Sensitivity.View all articles by Scott Adams
Dermatitis herpetiformis (DH) is a severely itchy skin condition that often starts abruptly, affecting the elbows, knees, buttocks, scalp, and back. It usually starts as little bumps that can become tiny blisters and then are usually scratched off. DH can occur in only one spot, but more often appears in several areas.
The condition is related to IgA deposits under the skin. These occur as a result of ingesting gluten. These deposits take a long time to clear up, even when the patient is on a gluten-free diet.
While most individuals with DH do not have obvious GI symptoms, almost all have some damage in their intestine. They have the potential for all of the nutritional complications of celiac disease. It is believed by some GI professionals that most DH patients do indeed have celiac disease.
It is unusual to develop DH after a celiac patient starts a gluten-free diet. About 5% of celiac patients will develop DH, either before being diagnosed or within the first year on the diet. The fact that DH can develop even after starting the diet is probably due to the long lasting nature of the IgA deposits.
For more information see the Dermatitis Herpetiformis page.
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