Rare diseases · Sign or symptom

Short philtrum

HP:0000322

What it means

Distance between nasal base and midline upper lip vermilion border more than 2 SD below the mean. Alternatively, an apparently decreased distance between nasal base and midline upper lip vermilion border.

Rare diseases that can present with this126

Very common80–99%

27

Common30–79%

52

Sometimes5–29%

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

Also called: Decreased height of philtrum · Decreased length of philtrum · Decreased vertical dimension of philtrum · Vertical hypoplasia of philtrum

Short philtrum

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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.