Light Microscopic Morphology of Indigenous Ghanaian African Hair from Scalp, Eyebrow, Axilla, and Pubic Regions.

CONTEXT

Relatively scanty literature on autochthonic African Negroid hair morphology provokes research interest for anthropological, forensic, and cosmetic purposes.

AIMS

This study aimed to contribute basic morphological information on Ghanaian African hairs.

SETTINGS AND DESIGN

The study was done in selected second-cycle schools in Accra, Ghana, using convenient sampling.

SUBJECTS AND METHODS

Hairs were obtained by pluck method, from 30 males and 30 females aged 15-20 years. Ghanaian African autochthony was established if individuals had two generations of indigenous Ghanaian parentage. Scalp, eyebrow, axilla, and pubic hairs were image captured using a digital light microscope eyepiece connected to a computer. Diameters of hair strands were measured; types of the medulla and the form and shape of the hair roots were studied.

STATISTICAL ANALYSIS USED

ANOVA test (SPSS Version 17.0) was used to compare the means of quantitative hair features among the sexes and the four regions of the body studied.

RESULTS

Pubic hair shaft was thickest (respective male and female diameters were 100.21 μm, 88.40 μm) and eyebrow hair was thinnest (53.97 and 46.69-μm diameters in males and females, respectively). Axillary and scalp hairs were the closest in diameters with 76.21 and 72.02 μm, respectively, in males and 73.07 and 71.15 μm, respectively, in females. Continuous type medulla was predominant in all hairs, with a trend of percentage occurrence in descending order from the pubic, axilla, eyebrow, and scalp in both sexes.

CONCLUSIONS

Bodily regional differences in diameter of hair shaft and medullary presence were affirmed.