Coeliac disease
Background
Coeliac disease affects the small intestine and is due to a sensitivity to gluten, which is a protein found in wheat. Similar proteins are found in rye, barley and, to a much smaller extent, oats.
Dermatitis Herpetiformis is an itchy skin rash which usually occurs on the elbows, buttocks and knees, although any area of skin may be affected. The condition is due to sensitivity to gluten and patients usually also have a small intestinal abnormality similar to that in coeliac disease. Dermatitis herpetiformis is rare, the prevalence being approximately 1 in 10,000 people. It is particularly rare in children.