Trait
Spasms on one side of the face
Clinical name: Hemifacial spasm
Intermittent clonic or tonic contraction of muscles supplied by facial nerve. Muscles are relaxed in between contractions.
Summary
- Body system
- Abnormality of the nervous system
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Get my Genome Test12 genes linked to Spasms on one side of the face
Changes in these genes cause rare conditions in which Spasms on one side of the face 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 |
|---|---|---|
| AKT1AKT serine/threonine kinase 1 | Rarely (1–4%) | In 1 condition |
| BAP1BRCA1 associated deubiquitinase 1 | Rarely (1–4%) | In 1 condition |
| NF2NF2, moesin-ezrin-radixin like (MERLIN) tumor suppressor | Rarely (1–4%) | In 1 condition |
| PDGFBplatelet derived growth factor subunit B | Rarely (1–4%) | In 1 condition |
| PIK3CAphosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha | Rarely (1–4%) | In 1 condition |
| SMARCB1SWI/SNF related BAF chromatin remodeling complex subunit B1 | Rarely (1–4%) | In 1 condition |
| SMARCE1SWI/SNF related BAF chromatin remodeling complex subunit E1 | Rarely (1–4%) | In 1 condition |
| SMOsmoothened, frizzled class receptor | Rarely (1–4%) | In 1 condition |
| SUFUSUFU negative regulator of hedgehog signaling | Rarely (1–4%) | In 1 condition |
| TERTtelomerase reverse transcriptase | Rarely (1–4%) | In 1 condition |
| TRAF7TNF receptor associated factor 7 | Rarely (1–4%) | In 1 condition |
| INPP5Einositol polyphosphate-5-phosphatase E | Not recorded | 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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