Rare diseases · Sign or symptom
Abnormal foot morphology
Abnormal feet structure
HP:0001760
What it means
An abnormality of the skeleton of foot.
A disorder of the foot that can either be congenital or acquired. Such deformities can include hammer toe, club foot deformity, flat feet, pes cavus, congenital vertical talus (rocker bottom foot), and many others.
Rare diseases that can present with this63
Very common80–99%
21- 48,XYYY syndrome
- Adult Refsum disease
- Autosomal dominant Charcot-Marie-Tooth disease type 2A2
- Autosomal dominant Charcot-Marie-Tooth disease type 2E
- Brain dopamine-serotonin vesicular transport disease
- Charcot-Marie-Tooth disease type 4A
- Charcot-Marie-Tooth disease type 4B2
- Charcot-Marie-Tooth disease type 4C
- Charcot-Marie-Tooth disease type 4G
- Classical-like Ehlers-Danlos syndrome type 1
- Classical-like Ehlers-Danlos syndrome type 2
- Craniometadiaphyseal dysplasia, wormian bone type
- Dermatoosteolysis, Kirghizian type
- Dermochondrocorneal dystrophy
- Free sialic acid storage disease
- Gorlin-Chaudhry-Moss syndrome
- Heart-hand syndrome, Slovenian type
- Hypermobile Ehlers-Danlos syndrome
- Intellectual disability-seizures-macrocephaly-obesity syndrome
- Mal de Meleda
- Mesomelia-synostoses syndrome
Common30–79%
21- 2q23.1microduplication syndrome
- Arthrochalasia Ehlers-Danlos syndrome
- Autosomal dominant Charcot-Marie-Tooth disease type 2W
- Autosomal recessive axonal neuropathy with neuromyotonia
- Autosomal recessive multiple pterygium syndrome
- Autosomal recessive spastic paraplegia type 20
- Brittle cornea syndrome
- Charcot-Marie-Tooth disease type 2B1
- Charcot-Marie-Tooth disease type 4D
- Chromomycosis
- DYRK1A-related intellectual disability syndrome due to 21q22.13q22.2 microdeletion
- Friedreich ataxia
- Infantile multisystem neurologic-endocrine-pancreatic disease
- Musculocontractural Ehlers-Danlos syndrome
- PMP22-RAI1 contiguous gene duplication syndrome
- Townes-Brocks syndrome
- Trisomy 10p syndrome
- Trisomy 18p syndrome
- Trisomy 20p syndrome
- Wolf-Hirschhorn syndrome
- X-linked Charcot-Marie-Tooth disease type 3
Sometimes5–29%
20- Autism spectrum disorder due to AUTS2 deficiency
- Autosomal recessive spastic ataxia of Charlevoix-Saguenay
- Classical Ehlers-Danlos syndrome
- Congenital adrenal hyperplasia due to cytochrome P450 oxidoreductase deficiency
- Developmental delay-facial dysmorphism syndrome due to MED13L deficiency
- Enthesitis-related juvenile idiopathic arthritis
- Fanconi anemia
- Farber disease
and 12 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
Also called: Abnormality of the feet · Abnormality of the foot · Foot deformities · Foot deformity
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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.