Rare diseases · Sign or symptom
Coxa vara
HP:0002812
What it means
Coxa vara includes all forms of decrease of the femoral neck shaft angle (the angle between the neck and the shaft of the femur) to less than 120 degrees.
The Latin word 'coxa' refers to the hip, and varus is a term for the inward angulation of the distal segment of a bone or joint. The normal range of the angle between the ball and the shaft of the femur is 120 to 135 degrees. Coxa vara can be congenital, developmental, or acquired.
Rare diseases that can present with this35
Very common80–99%
12- Acrocapitofemoral dysplasia
- Autosomal recessive hypophosphatemic rickets
- Camptodactyly-arthropathy-coxa-vara-pericarditis syndrome
- De Barsy syndrome
- Metaphyseal chondrodysplasia, Schmid type
- Microcephalic osteodysplastic primordial dwarfism type II
- Rhizomelic dysplasia, Patterson-Lowry type
- Spondyloepimetaphyseal dysplasia, Irapa type
- Spondylometaphyseal dysplasia, A4 type
- Spondylometaphyseal dysplasia-cone-rod dystrophy syndrome
- Spondylometaphyseal dysplasia, 'corner fracture' type
- Wrinkly skin syndrome
Common30–79%
9- Axial spondylometaphyseal dysplasia
- Desbuquois syndrome
- Femoral-facial syndrome
- Lowry-Wood syndrome
- Multiple epiphyseal dysplasia type 4
- Progressive spondyloepimetaphyseal dysplasia-short stature-short fourth metatarsals-intellectual disability syndrome
- Schwartz-Jampel syndrome
- Spondylometaphyseal dysplasia, Kozlowski type
- Spondylometaphyseal dysplasia, Schmidt type
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.