Rare diseases · Sign or symptom

Elevated urinary indican level

HP:6000130

What it means

Detection of indican in the urine. Urinary indican concentration may be elevated in small bowel bacterial overgrowth. Indican is produced by bacterial deconjugation of dietary tryptophan to indole which is absorbed at all levels of the intestine, but principally from the small bowel.

Rare diseases that can present with this1

Common30–79%

1

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

Elevated urinary indican 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.