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Glossary Axillary Hair

hair growing in the underarm area, starting during puberty

Axillary hair, commonly known as armpit hair, refers to the hair that grows in the underarm area. It typically begins to develop during puberty due to hormonal changes, specifically the increase in androgens. This hair serves various functions, including reducing friction between the upper arm and the torso, and playing a role in the dispersion of pheromones.

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Research

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research Role of Dehydroepiandrosterone and Dehydroepiandrosterone Sulfate for the Maintenance of Axillary Hair in Women

5 citations , January 1993 in “Hormone and Metabolic Research”

This study suggests that weak adrenal androgens like dehydroepiandrosterone and dehydroepiandrosterone-sulfate may play a key role in maintaining axillary hair in women over 50, rather than testosterone.

research Steroids excreted by human skin. I. C19-steroids in axillary hair.

5 citations , January 1983 in “PubMed”

This study determined that in axillary hair of mature males and females, free androgen steroids are primarily produced by sebaceous glands, while C19-steroid sulphates are products of sweat glands.

research The potential for occupational exposure of veterinarians to ketamine resulting in positive drug tests

3 citations , February 2018 in “Australian Veterinary Journal”

This article explores the possibility that veterinarians may test positive for ketamine due to occupational exposure, but it reports no specific new findings.

research Axillary Hairy Concretions: A Puzzle to Solve!

June 2026

In this case study, a 15-year-old obese boy was diagnosed with acanthosis nigricans and hair casts in the axillae, with Wood's lamp and dermoscopic examination revealing specific features, yet fungal infection was ruled out through a negative KOH test.

research Two females with hair loss

July 2019 in “Journal der Deutschen Dermatologischen Gesellschaft”

This source reports findings from a case study detailing hair loss in two female patients, published in the JDDG: Journal der Deutschen Dermatologischen Gesellschaft, emphasizing that specific diagnostic outcomes or treatment results are not included in the summary.

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community Is trichogram a good thing for testing genetic hair loss

2 upvotes 7 months ago

A dermatologist checked for hereditary hair loss using blood tests and plans to perform a trichogram. The user had slightly low Vitamin D3 levels, and the trichogram may help confirm androgenetic alopecia.

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

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Hairo Fallas