Health Care

Age of Onset

The age, developmental stage, or period of life at which a disease or the initial symptoms or manifestations of a disease appear in an individual.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The age, developmental stage, or period of life at which a disease or the initial symptoms or manifestations of a disease appear in an individual.

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

Loading graph…

Drag nodes to rearrange; hover to trace links; click a node to open its page.

MeSH Record

Synonyms

3 entry terms
  • Age-at-Onset
  • Age at Onset
  • Onset Age

MeSH Record

Indexing Annotation

IM general only; coordinate NIM with specific disease (IM); not for routine age of onset of disease in individual case reports

MeSH Record

History Note

94

MeSH Record

Previous Indexing

  • Age Factors (1966-1993)

MeSH Hierarchy

Tree Numbers

  1. N05.715w.350.075.100w
  2. N06.850w.490.250.100w

AMA Style

References

  1. National Library of Medicine. Age of Onset. Medical Subject Headings (MeSH). 2026. Unique ID D017668. http://id.nlm.nih.gov/mesh/2026/D017668
  2. Age of Onset. In: Wikipedia. https://en.wikipedia.org/wiki/Age_of_onset
  3. Age of Onset. In: Wikidata. https://www.wikidata.org/wiki/Q4691924