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[Cerumen from the anthropologic viewpoint]

A Meyer zum Gottesberge1, A M Meyer zum Gottesberge

  • 1Forschungslaboratorien, Hals-, Nasen- und Ohrenklinik, Heinrich-Heine-Universität, Düsseldorf.

Laryngo- Rhino- Otologie
|January 1, 1995
PubMed
Summary

Earwax (cerumen) exhibits dimorphism, with dry, flaky types common in Asian populations and wet, sticky types prevalent in African and European populations. These variations reflect distinct ancestral geographic distributions.

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Area of Science:

  • Anthropology
  • Genetics
  • Human Biology

Background:

  • Cerumen, or earwax, displays significant dimorphism, with two primary types: dry (flocky, gray) and wet (sticky, yellow to brown).
  • This variation was first documented in 1907, highlighting early observations of human biological diversity.

Purpose of the Study:

  • To review the global frequency and geographic distribution of different cerumen types.
  • To establish cerumen type as a potential biological marker for ancestral populations.

Main Methods:

  • Comprehensive literature review of studies on cerumen type frequency.
  • Analysis of geographic distribution data for dry and wet cerumen phenotypes.

Main Results:

  • Dry cerumen is a distinguishing feature predominantly found in Mongoloid (including American Indian) populations.

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  • Wet cerumen is significantly more frequent in Negroid (Congoid) and Europoid (Caucasoid) populations.
  • Intermediate frequencies suggest patterns of historical racial intermixture.

    • Conclusions:

    • Cerumen type exhibits a clear correlation with major ancestral geographic groups.
    • Earwax phenotype serves as a useful, observable trait for understanding human population genetics and migration patterns.