Telogen Effluvium: A Review

Area of Science:

• Dermatology
• Trichology

Background:

• Telogen effluvium is a prevalent cause of diffuse hair loss, disproportionately affecting women.
• It is characterized by increased shedding of telogen hairs, typically observed 3-4 months post-trigger.
• Numerous factors can precipitate telogen effluvium, highlighting its complex etiology.

Purpose of the Study:

• To review the key aspects of telogen effluvium, including its presentation, triggers, and diagnostic approaches.
• To emphasize the importance of a systematic diagnostic process for identifying the underlying causes of diffuse hair shedding.

Main Methods:

• Literature review of telogen effluvium, focusing on historical descriptions and etiological factors.
• Clinical presentation and diagnostic workup of patients with diffuse hair loss.

Main Results:

• Diffuse hair shedding is a common dermatological complaint with multiple potential triggers.
• The timing of shedding (3-4 months post-event) is a characteristic feature.
• Increased telogen hair shedding alone does not confirm the cause.

Conclusions:

• Accurate diagnosis of telogen effluvium necessitates a detailed patient history to identify potential triggers.
• Laboratory investigations are crucial for excluding underlying endocrine, nutritional, or autoimmune conditions.
• A comprehensive approach is essential for effective management of telogen effluvium.