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Updated: Feb 12, 2026

Collecting Hair Samples for Hair Cortisol Analysis in African Americans
Published on: June 10, 2018
[When hair starts to fall out]
Caroline de Lorenzi1, Sandrine Quenan1
1Service de dermatologie et vénéréologie, HUG, 1211 Genève 14.
Abstract:
Hair loss causes physical and psychological distress and represents a common motive of consultation both in general practice and dermatology. Causes of hair loss are highly diverse and can lead to a challenging diagnosis, which can delay its management. Knowledge of the main causes and their different mechanisms are thus necessary in order to optimize both the diagnosis and treatment. The purpose of this paper is to describe the main causes of hair loss in order to improve its diagnosis and management.
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