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Chronic Telogen Effluvium: Is it a Distinct Condition? A Systematic Review
Adam Daunton1, Matthew Harries2,3, Rodney Sinclair4
1The Dermatology Centre, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Salford, Greater Manchester, M6 8HD, UK. adamdaunton@gmail.com.
American Journal of Clinical Dermatology
|April 13, 2023
Summary
Chronic telogen effluvium lacks a clear definition, with many cases potentially being early female pattern hair loss or secondary to unidentified causes. Further research is needed to distinguish this condition from other forms of hair shedding.
Area of Science:
- Dermatology
- Trichology
- Hair Biology
Background:
- Persistent telogen-phase hair loss often lacks identifiable causes, leading to the diagnostic label of chronic telogen effluvium.
- This condition is poorly characterized, with uncertainty regarding its status as a distinct disorder.
Observation:
- A systematic review evaluated 18 studies (1628 cases) of purported chronic telogen effluvium.
- Most cases (97.5%) were female, and few studies excluded all potential causes of hair shedding.
- Limited prospective follow-up and objective evaluation of influencing factors like hair length or psychological distress were noted.
Findings:
- A lack of a consistent definition hinders the diagnosis of chronic telogen effluvium.
- Many cases may represent early female pattern hair loss or secondary telogen effluvium from unidentified causes.
- Some cases might involve alterations in the hair cycle or preoccupation with normal hair shedding.
Implications:
- Clarifying the definition and diagnostic criteria for chronic telogen effluvium is crucial.
- Distinguishing chronic telogen effluvium from other hair loss conditions requires further investigation.
- Understanding the role of underlying causes and psychological factors is essential for accurate diagnosis and management.
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