<p>Telogen effluvium: a comprehensive review</p>

Abstract

Excessive hair shedding is a common and alarming phenomenon, usually complained about by women. The disorder, named telogen effluvium (TE), bears several problems which are discussed in this essay. They are as follows: 1) how profuse a hair loss must be for TE to be diagnosed; 2) its heterogeneity that needs to be properly classified; 3) its distinction from androgenetic alopecia (AGA) with which it is often associated; 4) its main symptom, trichodynia, which is unclear how frequent and how diagnostic could be; 5) why histopathology has been reported to be nonspecific; and 6) its management, from diagnosis to treatment. A common mistake of the dermatologist is to minimize the complaint. Instead, the disorder may have a profound impact on the patients’ mind and would require attention, time, and empathy.

Evaluation of the effects of COVID‐19 pandemic on hair diseases through a web‐based questionnaire

“…Increased psychosocial stress can have an impact on the course of many common “stress‐sensitive” skin conditions that lead to actual or perceived exacerbation of the disease 17,19 . This is valid especially for TE, which is a disease caused by stressful events 20,21 . The significance of the brain‐skin axis has been emphasized continually 17,21 .…”

“…17,19 This is valid especially for TE, which is a disease caused by stressful events. 20,21 The significance of the brain-skin axis has been emphasized continually. 17,21 The relationship between a stressor and any subsequent changes in the hair growth cycle has led to the determination of brain-hair follicle axis.…”

Management of telogen effluvium during the COVID‐19 emergency: Psychological implications

“…10 The number of hairs lost during the test was communicated via email, and active TE was taken into consideration when hair shedding exceeded 100 hairs every 5 days. 3,10 All the patients, during the quarantine, reported having a higher stress level (average value 8.2) and much more attention for the hair loss from the last visit. As an alternative to an outpatient visit, the video consultation allowed patients to reduce their anxiety status related to hair loss and allowed us to update their therapy.…”

“…4,6 This is true especially for TE, a disease often induced by stressful events. 3,7 The importance of the brain-skin axis has been consistently underlined. 4,7 The relationship between a stressor and any subsequent change in the hair growth cycle has resulted in the designation of a brain-hair follicle axis.…”

Topical L‐thyroxine: The Cinderella among hormones waiting to dance on the floor of dermatological therapy?

“…11 Thus, it is reasonable to assume that topical T4 may be able to counteract the premature catagen induction that underlies various causes of telogen effluvium, including that associated with male pattern androgenetic alopecia and female pattern hair loss. 202,203 8.5 | Cicatricial alopecia: lichen planopilaris and frontal fibrosing alopecia…”