Telogen effluvium
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| Telogen effluvium Classification and external resources | |
| ICD-10 | L65.0 |
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| ICD-9 | 704.02 |
| DiseasesDB | 12926 |
| eMedicine | derm/416 |
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Telogen effluvium is characterized by sudden, diffuse hair loss caused by an interruption in the normal hair growth cycle.
Causes
This interruption is often the result of trauma, such as chemotherapy, childbirth, puberty, major surgery, severe stress, and severe chronic illness. This trauma causes large numbers of hair follicles to enter a stage of telogen, or rest, simultaneously. After roughly 3 months of the telogen cycle the follicles will enter the anagen cycle, a stage of growth. The old hair will be forced out of the follicle by a new hair that is formed beneath it. This will cause a period of diffuse hair shedding. This condition is usually self correcting and can affect people of all ages.
Classification
There is also another form of telogen effluvium referred to as 'chronic'. This is essentially the same except it is on-going.[1]
Presentation in pregnancy
A typical example of telogen effluvium is seen after pregnancy. In this condition women lose a significant amount of hair a few months after delivery when the protective effect of estrogen is removed. This shedding usually stops spontaneously and these patients will re-grow hair after 3 months.
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
