Rare diseases · Sign or symptom
Hallux valgus
Bunion
HP:0001822
What it means
Lateral deviation of the great toe (i.e., in the direction of the little toe).
Rare diseases that can present with this37
Common30–79%
13- Aphonia-deafness-retinal dystrophy-bifid halluces-intellectual disability syndrome
- B3GALT6-related spondylodysplastic Ehlers-Danlos syndrome
- Brachydactyly-syndactyly, Zhao type
- Brachydactyly type A7
- Camptodactyly syndrome, Guadalajara type 1
- Cardiac-valvular Ehlers-Danlos syndrome
- Classical-like Ehlers-Danlos syndrome type 1
- Distal duplication 17q syndrome
- Feingold syndrome
- Intellectual disability-obesity-prognathism-eye and skin anomalies syndrome
- Mowat-Wilson syndrome
- Van den Ende-Gupta syndrome
- Williams syndrome
Sometimes5–29%
21- 16p12.1p12.3triplication syndrome
- 20q13.33microdeletion syndrome
- 45,X/46,XY mixed gonadal dysgenesis
- 6q terminal deletion syndrome
- Acrocardiofacial syndrome
- Arthrochalasia Ehlers-Danlos syndrome
- Brachydactyly-short stature-retinitis pigmentosa syndrome
- Brittle cornea syndrome
and 13 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: Lateral deviation of great toe · Lateral deviation of halluces
Tracking symptoms like this for someone? Eleplan keeps symptoms, diagnoses, medications and every specialist in one plan.
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.