Rare diseases · Sign or symptom

Colonic inertia

HP:0012423

What it means

The inability of the colon to modify stool to an acceptable consistency and move the stool from the cecum to the rectosigmoid area at least once every three days.

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

Colonic inertia

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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.