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Ringed hair disease

Disease definition

A rare isolated, benign hair shaft abnormality, usually presenting after the age of 2 and affecting the hair of the scalp or, very rarely, beard, axillary, or pubic hair. Hair is characterized by a banded or speckled appearance due to alternating light bands (corresponding to air-filled cavities within the cortex of the affected hair shafts) and dark bands. The bands have a lifelong duration, may only be detectable under light microscopy, are more apparent in fair-colored hair or with age-related graying, and have no effect on hair growth or fragility in the vast majority of cases.

ORPHA:169

Classification level: Disorder
  • Synonym(s):
    • Pili annulati
  • Prevalence: Unknown
  • Inheritance: Autosomal dominant or Not applicable 
  • Age of onset: Childhood
  • ICD-10: Q84.1
  • ICD-11: EC21.0
  • OMIM: 180600
  • UMLS: C0263489
  • MeSH: C537187
  • GARD: 4359  4725
  • MedDRA: -

  A summary on this disease is available in Deutsch (2014) Español (2014) Italiano (2014) Nederlands (2014) Français (2005) Polski (2014, pdf) Polski ()

Additional information

Further information on this disease

Patient-centred resources for this disease

Research activities on this disease

Specialised Social Services

The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.