Trait
Triangular-shaped open mouth
A facial appearance characterized by a permanently or nearly permanently opened mouth, in which the upper lip is tented in a way that the opened mouth has the appearance of a triangle.
Summary
- Body system
- Abnormality of head or neck
Reference genomeGRCh38hg38
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Get my Genome Test3 genes linked to Triangular-shaped open mouth
Changes in these genes cause rare conditions in which Triangular-shaped open mouth 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.
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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