Rare diseases · Sign or symptom

Short distal phalanx of finger

Short outermost finger bone

HP:0009882

What it means

Short distance from the end of the finger to the most distal interphalangeal crease or the distal interphalangeal joint flexion point. That is, hypoplasia of one or more of the distal phalanx of finger.

This term differs from Partial absence of the finger because in that term, the phalanx must be missing, whereas in this term it may be small, but present. Distal phalangeal lengths can be assessed subjectively by comparing that digit segment to the rest of the digit, to other normal digits in that patient, or to typical patients of that age or build. Regarding the subjective definition, for individuals who do not have flexion creases, one may determine this by flexing the DIP joint and estimating the length of the terminal segment of the digit. Alternatively, one may be able to palpate the joint.

Rare diseases that can present with this76

Very common80–99%

40

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: Brachytelophalangy · Distal phalangeal hypoplasia · Hypoplasia of the distal phalanges · Hypoplasia of the distal phalanges of the hand · Hypoplastic distal phalanges · Hypoplastic terminal phalanges · Short distal phalanges · Terminal phalangeal hypoplasia of hand

Short distal phalanx of finger

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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.