Yes—this antibody deficiency occurred in 1.4%–4.8% of people with celiac disease, more often than in the general population. A 2026 review examined Immunoglobulin A (IgA) deficiency and celiac disease. This antibody helps guard the lining of the gut, lungs, and mouth. The review covered 31 studies published between 1985 and 2024. It looked at how often the conditions overlapped, symptoms, and testing challenges. The link also ran the other way. Among people with this antibody deficiency, 5.9%–14.1% had celiac disease. These ranges came from different studies, not one large study. The conditions share some genetic features, but their connection remains unclear. The review does not show that one causes the other. Most people studied had digestive symptoms. However, the way studies selected people could have shaped that finding. Their experiences may not reflect everyone with both conditions. The type of antibody test matters, too. Tests using another antibody, called IgG, remain essential for identifying and tracking celiac disease when this deficiency is present. But those antibody levels can fall slowly. That makes follow-up results harder to interpret over time. For BioSocial members, the takeaway is about understanding numbers in context. A bloodwork timeline can record the exact test, result, and date alongside digestive symptoms. When comparing notes, matching test types matters more than comparing numbers alone. This review also highlights why a slow-changing antibody result can be difficult to read by itself. What have your antibody results and digestive symptoms looked like during celiac testing or follow-up?