Rare diseases · Sign or symptom

Reactive hypoglycemia

Low blood sugar after a meal

HP:0012051

What it means

Hypoglycermia following a meal (or more generally, after intake of glucose).

Reactive hypoglycemia may be the result of an exaggerated insulin response.

Rare diseases that can present with this7

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: Postprandial hypoglycemia

Reactive hypoglycemia

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This 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.