Rare diseases · Sign or symptom

Narrow chest

Low chest circumference

HP:0000774

What it means

Reduced width of the chest from side to side, associated with a reduced distance from the sternal notch to the tip of the shoulder.

Rare diseases that can present with this81

Very common80–99%

39

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: Narrow shoulders · Narrow thorax · Reduced anterior-posterior chest diameter

Narrow chest

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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.