Is the most common cause of diffuse hair loss/ shedding and can affect men and women.  It can be acute (<6 months) or chronic (>6 months). TE occurs when an increased amount of anagen hairs (hair in the growth phase) are triggered to enter the resting/ telogen phase. Triggering factors include but are not limited to post-partum, febrile states, stress, medications, systemic disease, nutritional deficiencies. Management includes watchful waiting, removing triggering factors, nutritional supplementation, and minoxidil.

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References

- Rebora A. Telogen effluvium: a comprehensive review.  Clin Cosmet Investig Dermatol. 2019 Aug 21;12:583-590.