Rare diseases · Sign or symptom

Abnormal urine carbohydrate level

HP:0031979

What it means

Any deviation from the normal concentration of a carbohydrate in the urine.

Carbohydrates, also known as saccharides, comprise mono-, d-, and oligosaccharides (substances from endogenous metabolism or from exogenous sources such as diet). Most saccharides except glucose are readily excreted in the urine, reflecting dieteray consuption. Increased sacchardie levels may indicate an enzyme defect or other disease if a certain type of saccharide or a certain profile is found.

Rare diseases that can present with this2

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

Abnormal urine carbohydrate level

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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.