Rare diseases · Sign or symptom
Oligodactyly
HP:0012165
What it means
A developmental defect resulting in the presence of fewer than the normal number of digits.
Rare diseases that can present with this16
Very common80–99%
6Sometimes5–29%
9- CHILD syndrome
- Cornelia de Lange syndrome
- Frontonasal dysplasia-bifid nose-upper limb anomalies syndrome
- Ichthyosis follicularis-alopecia-photophobia syndrome
- Isolated fibular hemimelia
- Isolated tibial hemimelia
- Limb-mammary syndrome
- Microgastria-limb reduction defect syndrome
and 1 more in this range
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
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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.