Trait
Double jointed thumb
Clinical name: Hyperextensible thumb
The ability of the thumb joints to move beyond their normal range of motion.
Summary
- Body system
- Abnormality of the musculoskeletal system
Reference genomeGRCh38hg38
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Get my Genome Test1 gene linked to Double jointed thumb
Changes in these genes cause rare conditions in which Double jointed thumb is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
| Gene | How often it is seen | Conditions |
|---|---|---|
| USP9Xubiquitin specific peptidase 9 X-linked | Sometimes (5–29%) | In 1 condition |
How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
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