In family support groups, genetic risk is a huge topic of conversation. It is widely understood that celiac disease has a strong hereditary link, meaning it can absolutely run in families.
From an informational perspective, the development of the condition is closely linked to specific human leukocyte antigen gene variants, specifically known as HLA-DQ2 and HLA-DQ8. Statistically, if you have a first-degree relative (a parent, child, or sibling) diagnosed with celiac disease, data compiled by the National Institutes of Health (NIDDK) shows you have a significantly higher risk—roughly a 1 in 10 chance—of developing it yourself.
However, carrying the genes doesn’t mean a diagnosis is guaranteed. While around 30% to 40% of the general population carries HLA-DQ2 or HLA-DQ8, only a small fraction ever actually goes on to develop celiac disease. The genes act like a doorway that needs an environmental trigger to unlock it, which is why close relatives often consider routine monitoring or screening if symptoms ever pop up.