Trait
Hiccup
Clinical name: Recurrent singultus
A contraction of the diaphragm that repeats several times per minute. In humans, the abrupt rush of air into the lungs causes the epiglottis to close, creating a hic sound. Also known as synchronous diaphragmatic flutter (SDF), or singultus, from the Latin singult, the act of catching one's breath while sobbing. The hiccup is an involuntary action involving a reflex arc.
Summary
- Also called
- Recurrent hiccup, Recurrent hiccough, Recurrent synchronous diaphragmatic flutter
- Body system
- Constitutional symptom
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
Read the genes linked to Hiccup, and the rest of your genome, with one test.
From $449Free shipping · Results in 6–8 weeks
Get my Genome Test3 genes linked to Hiccup
Changes in these genes cause rare conditions in which Hiccup 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.
One test. A lifetime of answers.
From $449Free shipping · Results in 6–8 weeks