Rare diseases · Sign or symptom

Flattened metatarsal heads

Flattened head of long bone of foot

HP:0005194

What it means

Abnormally flat shape of the heads of the metatarsal bones.

The metatarsal heads articulate with the proximal phalanges of the toes.

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

Flattened metatarsal heads

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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.