Rare diseases · Sign or symptom

Aplasia/Hypoplasia of the proximal phalanx of the hallux

Absent/small innermost big toe bone

HP:0010085

Part of the broader category

Also called: Absent/underdeveloped innermost big toe bone

Aplasia/Hypoplasia of the proximal…

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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.