Rare diseases · Sign or symptom
Increased circulating IgA concentration
HP:0003261
What it means
An abnormally increased level of immunoglobulin A in blood.
Rare diseases that can present with this12
The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Also called: Elevated IgA · Elevated serum IgA · IgA hypergammaglobulinemia · Increased circulating IgA level · Increased levels of IgA · Increased serum IgA
Tracking symptoms like this for someone? Eleplan keeps symptoms, diagnoses, medications and every specialist in one plan.
Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.