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Hereditary geniospasm

Disease definition

Hereditary geniospasm is a movement disorder characterized by episodes of involuntary tremor of the chin and lower lip.


  • Synonym(s):
    • Familial trembling of the chin
    • Hereditary chin myoclonus
    • Hereditary chin-trembling
  • Prevalence: Unknown
  • Inheritance: Autosomal dominant 
  • Age of onset: Childhood
  • ICD-10: G25.3
  • OMIM: 190100
  • UMLS: C2931589
  • MeSH: C537682
  • GARD: 9501
  • MedDRA: -

Additional information

Further information on this disease

Specialised Social Services

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