Rare diseases · Sign or symptom
1-5 finger cutaneous syndactyly
Webbed 1st-5th fingers
HP:0010708
What it means
A soft tissue continuity in the anteroposterior axis between the thumb to the little finger that extends distally to at least the level of the proximal interphalangeal joints (complete syndactyly of all fingers of the hand).
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
Also called: Webbed 1-5 fingers
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Start free with EleplanThis 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.