Rare diseases · Sign or symptom
Transient hypogammaglobulinemia of infancy
HP:0005432
What it means
At birth, newborns are endowed with maternal antibodies. IgG production normally begins at the age of two months. A delay in recovery from this physiological hypogammaglobulinemia between the 3rd and the 6th month of life, and of recovery period between 18 and 36 months defines transient hypogammaglobulinemia of infancy.
Rare diseases that can present with this1
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: Newborn gammaglobulin deficiency
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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.